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</a>
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</div>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_1" >
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<label class="md-nav__link" for="__nav_1" id="__nav_1_label" tabindex="0">
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0. 写在前面
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_1_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_1">
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<span class="md-nav__icon md-icon"></span>
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0. 写在前面
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_preface/about_the_book/" class="md-nav__link">
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0.1. 关于本书
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_preface/suggestions/" class="md-nav__link">
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0.2. 如何使用本书
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_preface/installation/" class="md-nav__link">
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0.3. 编程环境安装
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_preface/contribution/" class="md-nav__link">
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0.4. 一起参与创作
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_2" >
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<label class="md-nav__link" for="__nav_2" id="__nav_2_label" tabindex="0">
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1. 引言
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_2_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_2">
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<span class="md-nav__icon md-icon"></span>
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1. 引言
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_introduction/algorithms_are_everywhere/" class="md-nav__link">
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1.1. 算法无处不在
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_introduction/what_is_dsa/" class="md-nav__link">
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1.2. 算法是什么
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_3" >
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<label class="md-nav__link" for="__nav_3" id="__nav_3_label" tabindex="0">
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2. 计算复杂度
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<span class="md-nav__icon md-icon"></span>
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</label>
|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_3_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_3">
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<span class="md-nav__icon md-icon"></span>
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2. 计算复杂度
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_computational_complexity/performance_evaluation/" class="md-nav__link">
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2.1. 算法效率评估
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_computational_complexity/time_complexity/" class="md-nav__link">
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2.2. 时间复杂度
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_computational_complexity/space_complexity/" class="md-nav__link">
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2.3. 空间复杂度
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_computational_complexity/space_time_tradeoff/" class="md-nav__link">
|
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2.4. 权衡时间与空间
|
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_computational_complexity/summary/" class="md-nav__link">
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2.5. 小结
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" >
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<label class="md-nav__link" for="__nav_4" id="__nav_4_label" tabindex="0">
|
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3. 数据结构简介
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="false">
|
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<label class="md-nav__title" for="__nav_4">
|
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<span class="md-nav__icon md-icon"></span>
|
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3. 数据结构简介
|
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_data_structure/data_and_memory/" class="md-nav__link">
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3.1. 数据与内存
|
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</a>
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</li>
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<li class="md-nav__item">
|
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<a href="../../chapter_data_structure/classification_of_data_structure/" class="md-nav__link">
|
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3.2. 数据结构分类
|
|
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</a>
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</li>
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<li class="md-nav__item">
|
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<a href="../../chapter_data_structure/summary/" class="md-nav__link">
|
|
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3.3. 小结
|
|
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--active md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_5" checked>
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<label class="md-nav__link" for="__nav_5" id="__nav_5_label" tabindex="0">
|
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4. 数组与链表
|
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<span class="md-nav__icon md-icon"></span>
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</label>
|
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_5_label" aria-expanded="true">
|
|
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<label class="md-nav__title" for="__nav_5">
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<span class="md-nav__icon md-icon"></span>
|
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4. 数组与链表
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../array/" class="md-nav__link">
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|
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4.1. 数组（Array）
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../linked_list/" class="md-nav__link">
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4.2. 链表（LinkedList）
|
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</a>
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</li>
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<li class="md-nav__item md-nav__item--active">
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<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
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<label class="md-nav__link md-nav__link--active" for="__toc">
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4.3. 列表（List）
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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<a href="./" class="md-nav__link md-nav__link--active">
|
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4.3. 列表（List）
|
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</a>
|
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<nav class="md-nav md-nav--secondary" aria-label="目录">
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<label class="md-nav__title" for="__toc">
|
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<span class="md-nav__icon md-icon"></span>
|
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目录
|
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</label>
|
|
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<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
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<li class="md-nav__item">
|
|
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<a href="#431" class="md-nav__link">
|
|
|
4.3.1. 列表常用操作
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</a>
|
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</li>
|
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|
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<li class="md-nav__item">
|
|
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<a href="#432" class="md-nav__link">
|
|
|
4.3.2. 列表简易实现 *
|
|
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</a>
|
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</li>
|
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</ul>
|
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</nav>
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</li>
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<li class="md-nav__item">
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<a href="../summary/" class="md-nav__link">
|
|
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4.4. 小结
|
|
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</a>
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</li>
|
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_6" >
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<label class="md-nav__link" for="__nav_6" id="__nav_6_label" tabindex="0">
|
|
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5. 栈与队列
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
</label>
|
|
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|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_6_label" aria-expanded="false">
|
|
|
<label class="md-nav__title" for="__nav_6">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
5. 栈与队列
|
|
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</label>
|
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
|
|
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<a href="../../chapter_stack_and_queue/stack/" class="md-nav__link">
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|
|
5.1. 栈（Stack）
|
|
|
</a>
|
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_stack_and_queue/queue/" class="md-nav__link">
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5.2. 队列（Queue）
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_stack_and_queue/deque/" class="md-nav__link">
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5.3. 双向队列（Deque）
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_stack_and_queue/summary/" class="md-nav__link">
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5.4. 小结
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_7" >
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<label class="md-nav__link" for="__nav_7" id="__nav_7_label" tabindex="0">
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6. 散列表
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<span class="md-nav__icon md-icon"></span>
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</label>
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<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_7_label" aria-expanded="false">
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<label class="md-nav__title" for="__nav_7">
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<span class="md-nav__icon md-icon"></span>
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6. 散列表
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</label>
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<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
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<a href="../../chapter_hashing/hash_map/" class="md-nav__link">
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6.1. 哈希表（HashMap）
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_hashing/hash_collision/" class="md-nav__link">
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6.2. 哈希冲突处理
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</a>
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_hashing/summary/" class="md-nav__link">
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6.3. 小结
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</a>
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_8" >
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<label class="md-nav__link" for="__nav_8" id="__nav_8_label" tabindex="0">
|
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7. 二叉树
|
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<span class="md-nav__icon md-icon"></span>
|
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</label>
|
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|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_8_label" aria-expanded="false">
|
|
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<label class="md-nav__title" for="__nav_8">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
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7. 二叉树
|
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</label>
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|
<ul class="md-nav__list" data-md-scrollfix>
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/binary_tree/" class="md-nav__link">
|
|
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7.1. 二叉树（Binary Tree）
|
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|
</a>
|
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</li>
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/binary_tree_traversal/" class="md-nav__link">
|
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7.2. 二叉树遍历
|
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</a>
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</li>
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/binary_search_tree/" class="md-nav__link">
|
|
|
7.3. 二叉搜索树
|
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|
</a>
|
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</li>
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<li class="md-nav__item">
|
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<a href="../../chapter_tree/avl_tree/" class="md-nav__link">
|
|
|
7.4. AVL 树 *
|
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</a>
|
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</li>
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<li class="md-nav__item">
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<a href="../../chapter_tree/summary/" class="md-nav__link">
|
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7.5. 小结
|
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</a>
|
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</li>
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_9" >
|
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<label class="md-nav__link" for="__nav_9" id="__nav_9_label" tabindex="0">
|
|
|
8. 堆
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
</label>
|
|
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|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_9_label" aria-expanded="false">
|
|
|
<label class="md-nav__title" for="__nav_9">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
8. 堆
|
|
|
</label>
|
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
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|
<li class="md-nav__item">
|
|
|
<a href="../../chapter_heap/heap/" class="md-nav__link">
|
|
|
8.1. 堆（Heap）
|
|
|
</a>
|
|
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</li>
|
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
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|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_10" >
|
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<label class="md-nav__link" for="__nav_10" id="__nav_10_label" tabindex="0">
|
|
|
9. 图
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
</label>
|
|
|
|
|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_10_label" aria-expanded="false">
|
|
|
<label class="md-nav__title" for="__nav_10">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
9. 图
|
|
|
</label>
|
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
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<li class="md-nav__item">
|
|
|
<a href="../../chapter_graph/graph/" class="md-nav__link">
|
|
|
9.1. 图（Graph）
|
|
|
</a>
|
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</li>
|
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<li class="md-nav__item">
|
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|
<a href="../../chapter_graph/graph_operations/" class="md-nav__link">
|
|
|
9.2. 图基础操作
|
|
|
</a>
|
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</li>
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|
<li class="md-nav__item">
|
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|
<a href="../../chapter_graph/graph_traversal/" class="md-nav__link">
|
|
|
9.3. 图的遍历
|
|
|
</a>
|
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|
</li>
|
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</ul>
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
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|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_11" >
|
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<label class="md-nav__link" for="__nav_11" id="__nav_11_label" tabindex="0">
|
|
|
10. 查找算法
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
</label>
|
|
|
|
|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_11_label" aria-expanded="false">
|
|
|
<label class="md-nav__title" for="__nav_11">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
10. 查找算法
|
|
|
</label>
|
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
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|
<li class="md-nav__item">
|
|
|
<a href="../../chapter_searching/linear_search/" class="md-nav__link">
|
|
|
10.1. 线性查找
|
|
|
</a>
|
|
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</li>
|
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|
<li class="md-nav__item">
|
|
|
<a href="../../chapter_searching/binary_search/" class="md-nav__link">
|
|
|
10.2. 二分查找
|
|
|
</a>
|
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</li>
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<li class="md-nav__item">
|
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|
<a href="../../chapter_searching/hashing_search/" class="md-nav__link">
|
|
|
10.3. 哈希查找
|
|
|
</a>
|
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</li>
|
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<li class="md-nav__item">
|
|
|
<a href="../../chapter_searching/summary/" class="md-nav__link">
|
|
|
10.4. 小结
|
|
|
</a>
|
|
|
</li>
|
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</ul>
|
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</nav>
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</li>
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<li class="md-nav__item md-nav__item--section md-nav__item--nested">
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_12" >
|
|
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|
<label class="md-nav__link" for="__nav_12" id="__nav_12_label" tabindex="0">
|
|
|
11. 排序算法
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
</label>
|
|
|
|
|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_12_label" aria-expanded="false">
|
|
|
<label class="md-nav__title" for="__nav_12">
|
|
|
<span class="md-nav__icon md-icon"></span>
|
|
|
11. 排序算法
|
|
|
</label>
|
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
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|
<li class="md-nav__item">
|
|
|
<a href="../../chapter_sorting/intro_to_sort/" class="md-nav__link">
|
|
|
11.1. 排序简介
|
|
|
</a>
|
|
|
</li>
|
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<li class="md-nav__item">
|
|
|
<a href="../../chapter_sorting/bubble_sort/" class="md-nav__link">
|
|
|
11.2. 冒泡排序
|
|
|
</a>
|
|
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</li>
|
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<li class="md-nav__item">
|
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|
<a href="../../chapter_sorting/insertion_sort/" class="md-nav__link">
|
|
|
11.3. 插入排序
|
|
|
</a>
|
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</li>
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<li class="md-nav__item">
|
|
|
<a href="../../chapter_sorting/quick_sort/" class="md-nav__link">
|
|
|
11.4. 快速排序
|
|
|
</a>
|
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</li>
|
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4.3.1. 列表常用操作
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4.3.2. 列表简易实现 *
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M10 20H6V4h7v5h5v3.1l2-2V8l-6-6H6c-1.1 0-2 .9-2 2v16c0 1.1.9 2 2 2h4v-2m10.2-7c.1 0 .3.1.4.2l1.3 1.3c.2.2.2.6 0 .8l-1 1-2.1-2.1 1-1c.1-.1.2-.2.4-.2m0 3.9L14.1 23H12v-2.1l6.1-6.1 2.1 2.1Z"/></svg>
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<h1 id="43">4.3. 列表<a class="headerlink" href="#43" title="Permanent link">¶</a></h1>
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<p><strong>由于长度不可变，数组的实用性大大降低</strong>。在很多情况下，我们事先并不知道会输入多少数据，这就为数组长度的选择带来了很大困难。长度选小了，需要在添加数据中频繁地扩容数组；长度选大了，又造成内存空间的浪费。</p>
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<p>为了解决此问题，诞生了一种被称为「列表 List」的数据结构。列表可以被理解为长度可变的数组，因此也常被称为「动态数组 Dynamic Array」。列表基于数组实现，继承了数组的优点，同时还可以在程序运行中实时扩容。在列表中，我们可以自由地添加元素，而不用担心超过容量限制。</p>
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<h2 id="431">4.3.1. 列表常用操作<a class="headerlink" href="#431" title="Permanent link">¶</a></h2>
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<p><strong>初始化列表</strong>。我们通常会使用到“无初始值”和“有初始值”的两种初始化方法。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="1:10"><input checked="checked" id="__tabbed_1_1" name="__tabbed_1" type="radio" /><input id="__tabbed_1_2" name="__tabbed_1" type="radio" /><input id="__tabbed_1_3" name="__tabbed_1" type="radio" /><input id="__tabbed_1_4" name="__tabbed_1" type="radio" /><input id="__tabbed_1_5" name="__tabbed_1" type="radio" /><input id="__tabbed_1_6" name="__tabbed_1" type="radio" /><input id="__tabbed_1_7" name="__tabbed_1" type="radio" /><input id="__tabbed_1_8" name="__tabbed_1" type="radio" /><input id="__tabbed_1_9" name="__tabbed_1" type="radio" /><input id="__tabbed_1_10" name="__tabbed_1" type="radio" /><div class="tabbed-labels"><label for="__tabbed_1_1">Java</label><label for="__tabbed_1_2">C++</label><label for="__tabbed_1_3">Python</label><label for="__tabbed_1_4">Go</label><label for="__tabbed_1_5">JavaScript</label><label for="__tabbed_1_6">TypeScript</label><label for="__tabbed_1_7">C</label><label for="__tabbed_1_8">C#</label><label for="__tabbed_1_9">Swift</label><label for="__tabbed_1_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-0-1" name="__codelineno-0-1" href="#__codelineno-0-1"></a><span class="cm">/* 初始化列表 */</span>
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<a id="__codelineno-0-2" name="__codelineno-0-2" href="#__codelineno-0-2"></a><span class="c1">// 无初始值</span>
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<a id="__codelineno-0-3" name="__codelineno-0-3" href="#__codelineno-0-3"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">();</span>
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<a id="__codelineno-0-4" name="__codelineno-0-4" href="#__codelineno-0-4"></a><span class="c1">// 有初始值（注意数组的元素类型需为 int[] 的包装类 Integer[]）</span>
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<a id="__codelineno-0-5" name="__codelineno-0-5" href="#__codelineno-0-5"></a><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-0-6" name="__codelineno-0-6" href="#__codelineno-0-6"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="n">numbers</span><span class="p">));</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-1-1" name="__codelineno-1-1" href="#__codelineno-1-1"></a><span class="cm">/* 初始化列表 */</span>
|
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<a id="__codelineno-1-2" name="__codelineno-1-2" href="#__codelineno-1-2"></a><span class="c1">// 需注意，C++ 中 vector 即是本文描述的 list</span>
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<a id="__codelineno-1-3" name="__codelineno-1-3" href="#__codelineno-1-3"></a><span class="c1">// 无初始值</span>
|
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<a id="__codelineno-1-4" name="__codelineno-1-4" href="#__codelineno-1-4"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="p">;</span>
|
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<a id="__codelineno-1-5" name="__codelineno-1-5" href="#__codelineno-1-5"></a><span class="c1">// 有初始值</span>
|
|
|
<a id="__codelineno-1-6" name="__codelineno-1-6" href="#__codelineno-1-6"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">};</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-2-1" name="__codelineno-2-1" href="#__codelineno-2-1"></a><span class="sd">""" 初始化列表 """</span>
|
|
|
<a id="__codelineno-2-2" name="__codelineno-2-2" href="#__codelineno-2-2"></a><span class="c1"># 无初始值</span>
|
|
|
<a id="__codelineno-2-3" name="__codelineno-2-3" href="#__codelineno-2-3"></a><span class="n">list1</span> <span class="o">=</span> <span class="p">[]</span>
|
|
|
<a id="__codelineno-2-4" name="__codelineno-2-4" href="#__codelineno-2-4"></a><span class="c1"># 有初始值</span>
|
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|
<a id="__codelineno-2-5" name="__codelineno-2-5" href="#__codelineno-2-5"></a><span class="nb">list</span> <span class="o">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-3-1" name="__codelineno-3-1" href="#__codelineno-3-1"></a><span class="cm">/* 初始化列表 */</span>
|
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<a id="__codelineno-3-2" name="__codelineno-3-2" href="#__codelineno-3-2"></a><span class="c1">// 无初始值</span>
|
|
|
<a id="__codelineno-3-3" name="__codelineno-3-3" href="#__codelineno-3-3"></a><span class="nx">list1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span>
|
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<a id="__codelineno-3-4" name="__codelineno-3-4" href="#__codelineno-3-4"></a><span class="c1">// 有初始值</span>
|
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|
<a id="__codelineno-3-5" name="__codelineno-3-5" href="#__codelineno-3-5"></a><span class="nx">list</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-4-1" name="__codelineno-4-1" href="#__codelineno-4-1"></a><span class="cm">/* 初始化列表 */</span>
|
|
|
<a id="__codelineno-4-2" name="__codelineno-4-2" href="#__codelineno-4-2"></a><span class="c1">// 无初始值</span>
|
|
|
<a id="__codelineno-4-3" name="__codelineno-4-3" href="#__codelineno-4-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
|
|
<a id="__codelineno-4-4" name="__codelineno-4-4" href="#__codelineno-4-4"></a><span class="c1">// 有初始值</span>
|
|
|
<a id="__codelineno-4-5" name="__codelineno-4-5" href="#__codelineno-4-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-5-1" name="__codelineno-5-1" href="#__codelineno-5-1"></a><span class="cm">/* 初始化列表 */</span>
|
|
|
<a id="__codelineno-5-2" name="__codelineno-5-2" href="#__codelineno-5-2"></a><span class="c1">// 无初始值</span>
|
|
|
<a id="__codelineno-5-3" name="__codelineno-5-3" href="#__codelineno-5-3"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[];</span>
|
|
|
<a id="__codelineno-5-4" name="__codelineno-5-4" href="#__codelineno-5-4"></a><span class="c1">// 有初始值</span>
|
|
|
<a id="__codelineno-5-5" name="__codelineno-5-5" href="#__codelineno-5-5"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">1</span><span class="p">,</span><span class="w"> </span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">2</span><span class="p">,</span><span class="w"> </span><span class="mf">5</span><span class="p">,</span><span class="w"> </span><span class="mf">4</span><span class="p">];</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-6-1" name="__codelineno-6-1" href="#__codelineno-6-1"></a>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-7-1" name="__codelineno-7-1" href="#__codelineno-7-1"></a><span class="cm">/* 初始化列表 */</span>
|
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<a id="__codelineno-7-2" name="__codelineno-7-2" href="#__codelineno-7-2"></a><span class="c1">// 无初始值</span>
|
|
|
<a id="__codelineno-7-3" name="__codelineno-7-3" href="#__codelineno-7-3"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="p">();</span>
|
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<a id="__codelineno-7-4" name="__codelineno-7-4" href="#__codelineno-7-4"></a><span class="c1">// 有初始值</span>
|
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<a id="__codelineno-7-5" name="__codelineno-7-5" href="#__codelineno-7-5"></a><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">numbers</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="m">1</span><span class="p">,</span><span class="w"> </span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">2</span><span class="p">,</span><span class="w"> </span><span class="m">5</span><span class="p">,</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-7-6" name="__codelineno-7-6" href="#__codelineno-7-6"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">numbers</span><span class="p">.</span><span class="n">ToList</span><span class="p">();</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-8-1" name="__codelineno-8-1" href="#__codelineno-8-1"></a><span class="cm">/* 初始化列表 */</span>
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<a id="__codelineno-8-2" name="__codelineno-8-2" href="#__codelineno-8-2"></a><span class="c1">// 无初始值</span>
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<a id="__codelineno-8-3" name="__codelineno-8-3" href="#__codelineno-8-3"></a><span class="kd">let</span> <span class="nv">list1</span><span class="p">:</span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="p">=</span> <span class="p">[]</span>
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<a id="__codelineno-8-4" name="__codelineno-8-4" href="#__codelineno-8-4"></a><span class="c1">// 有初始值</span>
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<a id="__codelineno-8-5" name="__codelineno-8-5" href="#__codelineno-8-5"></a><span class="kd">var</span> <span class="nv">list</span> <span class="p">=</span> <span class="p">[</span><span class="mi">1</span><span class="p">,</span> <span class="mi">3</span><span class="p">,</span> <span class="mi">2</span><span class="p">,</span> <span class="mi">5</span><span class="p">,</span> <span class="mi">4</span><span class="p">]</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-9-1" name="__codelineno-9-1" href="#__codelineno-9-1"></a><span class="c1">// 初始化列表</span>
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<a id="__codelineno-9-2" name="__codelineno-9-2" href="#__codelineno-9-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">list</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">ArrayList</span><span class="p">(</span><span class="kt">i32</span><span class="p">).</span><span class="n">init</span><span class="p">(</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">page_allocator</span><span class="p">);</span>
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<a id="__codelineno-9-3" name="__codelineno-9-3" href="#__codelineno-9-3"></a><span class="k">defer</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
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<a id="__codelineno-9-4" name="__codelineno-9-4" href="#__codelineno-9-4"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">appendSlice</span><span class="p">(</span><span class="o">&</span><span class="p">[</span><span class="n">_</span><span class="p">]</span><span class="kt">i32</span><span class="p">{</span><span class="w"> </span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="w"> </span><span class="p">});</span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<p><strong>访问与更新元素</strong>。列表的底层数据结构是数组，因此可以在 <span class="arithmatex">\(O(1)\)</span> 时间内访问与更新元素，效率很高。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="2:10"><input checked="checked" id="__tabbed_2_1" name="__tabbed_2" type="radio" /><input id="__tabbed_2_2" name="__tabbed_2" type="radio" /><input id="__tabbed_2_3" name="__tabbed_2" type="radio" /><input id="__tabbed_2_4" name="__tabbed_2" type="radio" /><input id="__tabbed_2_5" name="__tabbed_2" type="radio" /><input id="__tabbed_2_6" name="__tabbed_2" type="radio" /><input id="__tabbed_2_7" name="__tabbed_2" type="radio" /><input id="__tabbed_2_8" name="__tabbed_2" type="radio" /><input id="__tabbed_2_9" name="__tabbed_2" type="radio" /><input id="__tabbed_2_10" name="__tabbed_2" type="radio" /><div class="tabbed-labels"><label for="__tabbed_2_1">Java</label><label for="__tabbed_2_2">C++</label><label for="__tabbed_2_3">Python</label><label for="__tabbed_2_4">Go</label><label for="__tabbed_2_5">JavaScript</label><label for="__tabbed_2_6">TypeScript</label><label for="__tabbed_2_7">C</label><label for="__tabbed_2_8">C#</label><label for="__tabbed_2_9">Swift</label><label for="__tabbed_2_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-10-1" name="__codelineno-10-1" href="#__codelineno-10-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-10-2" name="__codelineno-10-2" href="#__codelineno-10-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="na">get</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-10-3" name="__codelineno-10-3" href="#__codelineno-10-3"></a>
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<a id="__codelineno-10-4" name="__codelineno-10-4" href="#__codelineno-10-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-10-5" name="__codelineno-10-5" href="#__codelineno-10-5"></a><span class="n">list</span><span class="p">.</span><span class="na">set</span><span class="p">(</span><span class="mi">1</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-11-1" name="__codelineno-11-1" href="#__codelineno-11-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-11-2" name="__codelineno-11-2" href="#__codelineno-11-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">list</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-11-3" name="__codelineno-11-3" href="#__codelineno-11-3"></a>
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<a id="__codelineno-11-4" name="__codelineno-11-4" href="#__codelineno-11-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-11-5" name="__codelineno-11-5" href="#__codelineno-11-5"></a><span class="n">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-12-1" name="__codelineno-12-1" href="#__codelineno-12-1"></a><span class="sd">""" 访问元素 """</span>
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<a id="__codelineno-12-2" name="__codelineno-12-2" href="#__codelineno-12-2"></a><span class="n">num</span> <span class="o">=</span> <span class="nb">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="c1"># 访问索引 1 处的元素</span>
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<a id="__codelineno-12-3" name="__codelineno-12-3" href="#__codelineno-12-3"></a>
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<a id="__codelineno-12-4" name="__codelineno-12-4" href="#__codelineno-12-4"></a><span class="sd">""" 更新元素 """</span>
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<a id="__codelineno-12-5" name="__codelineno-12-5" href="#__codelineno-12-5"></a><span class="nb">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-13-1" name="__codelineno-13-1" href="#__codelineno-13-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-13-2" name="__codelineno-13-2" href="#__codelineno-13-2"></a><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-13-3" name="__codelineno-13-3" href="#__codelineno-13-3"></a>
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<a id="__codelineno-13-4" name="__codelineno-13-4" href="#__codelineno-13-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-13-5" name="__codelineno-13-5" href="#__codelineno-13-5"></a><span class="nx">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-14-1" name="__codelineno-14-1" href="#__codelineno-14-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-14-2" name="__codelineno-14-2" href="#__codelineno-14-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">list</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-14-3" name="__codelineno-14-3" href="#__codelineno-14-3"></a>
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<a id="__codelineno-14-4" name="__codelineno-14-4" href="#__codelineno-14-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-14-5" name="__codelineno-14-5" href="#__codelineno-14-5"></a><span class="nx">list</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-15-1" name="__codelineno-15-1" href="#__codelineno-15-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-15-2" name="__codelineno-15-2" href="#__codelineno-15-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">list</span><span class="p">[</span><span class="mf">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-15-3" name="__codelineno-15-3" href="#__codelineno-15-3"></a>
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<a id="__codelineno-15-4" name="__codelineno-15-4" href="#__codelineno-15-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-15-5" name="__codelineno-15-5" href="#__codelineno-15-5"></a><span class="nx">list</span><span class="p">[</span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-16-1" name="__codelineno-16-1" href="#__codelineno-16-1"></a>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-17-1" name="__codelineno-17-1" href="#__codelineno-17-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-17-2" name="__codelineno-17-2" href="#__codelineno-17-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">list</span><span class="p">[</span><span class="m">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-17-3" name="__codelineno-17-3" href="#__codelineno-17-3"></a>
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<a id="__codelineno-17-4" name="__codelineno-17-4" href="#__codelineno-17-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-17-5" name="__codelineno-17-5" href="#__codelineno-17-5"></a><span class="n">list</span><span class="p">[</span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-18-1" name="__codelineno-18-1" href="#__codelineno-18-1"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-18-2" name="__codelineno-18-2" href="#__codelineno-18-2"></a><span class="kd">let</span> <span class="nv">num</span> <span class="p">=</span> <span class="n">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-18-3" name="__codelineno-18-3" href="#__codelineno-18-3"></a>
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<a id="__codelineno-18-4" name="__codelineno-18-4" href="#__codelineno-18-4"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-18-5" name="__codelineno-18-5" href="#__codelineno-18-5"></a><span class="n">list</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span> <span class="p">=</span> <span class="mi">0</span> <span class="c1">// 将索引 1 处的元素更新为 0</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-19-1" name="__codelineno-19-1" href="#__codelineno-19-1"></a><span class="c1">// 访问元素</span>
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<a id="__codelineno-19-2" name="__codelineno-19-2" href="#__codelineno-19-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">[</span><span class="mi">1</span><span class="p">];</span><span class="w"> </span><span class="c1">// 访问索引 1 处的元素</span>
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<a id="__codelineno-19-3" name="__codelineno-19-3" href="#__codelineno-19-3"></a>
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<a id="__codelineno-19-4" name="__codelineno-19-4" href="#__codelineno-19-4"></a><span class="c1">// 更新元素</span>
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<a id="__codelineno-19-5" name="__codelineno-19-5" href="#__codelineno-19-5"></a><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">[</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 将索引 1 处的元素更新为 0 </span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<p><strong>在列表中添加、插入、删除元素</strong>。相对于数组，列表可以自由地添加与删除元素。在列表尾部添加元素的时间复杂度为 <span class="arithmatex">\(O(1)\)</span> ，但是插入与删除元素的效率仍与数组一样低，时间复杂度为 <span class="arithmatex">\(O(N)\)</span> 。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="3:10"><input checked="checked" id="__tabbed_3_1" name="__tabbed_3" type="radio" /><input id="__tabbed_3_2" name="__tabbed_3" type="radio" /><input id="__tabbed_3_3" name="__tabbed_3" type="radio" /><input id="__tabbed_3_4" name="__tabbed_3" type="radio" /><input id="__tabbed_3_5" name="__tabbed_3" type="radio" /><input id="__tabbed_3_6" name="__tabbed_3" type="radio" /><input id="__tabbed_3_7" name="__tabbed_3" type="radio" /><input id="__tabbed_3_8" name="__tabbed_3" type="radio" /><input id="__tabbed_3_9" name="__tabbed_3" type="radio" /><input id="__tabbed_3_10" name="__tabbed_3" type="radio" /><div class="tabbed-labels"><label for="__tabbed_3_1">Java</label><label for="__tabbed_3_2">C++</label><label for="__tabbed_3_3">Python</label><label for="__tabbed_3_4">Go</label><label for="__tabbed_3_5">JavaScript</label><label for="__tabbed_3_6">TypeScript</label><label for="__tabbed_3_7">C</label><label for="__tabbed_3_8">C#</label><label for="__tabbed_3_9">Swift</label><label for="__tabbed_3_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-20-1" name="__codelineno-20-1" href="#__codelineno-20-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-20-2" name="__codelineno-20-2" href="#__codelineno-20-2"></a><span class="n">list</span><span class="p">.</span><span class="na">clear</span><span class="p">();</span>
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<a id="__codelineno-20-3" name="__codelineno-20-3" href="#__codelineno-20-3"></a>
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<a id="__codelineno-20-4" name="__codelineno-20-4" href="#__codelineno-20-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-20-5" name="__codelineno-20-5" href="#__codelineno-20-5"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
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<a id="__codelineno-20-6" name="__codelineno-20-6" href="#__codelineno-20-6"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
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<a id="__codelineno-20-7" name="__codelineno-20-7" href="#__codelineno-20-7"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
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<a id="__codelineno-20-8" name="__codelineno-20-8" href="#__codelineno-20-8"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
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<a id="__codelineno-20-9" name="__codelineno-20-9" href="#__codelineno-20-9"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
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<a id="__codelineno-20-10" name="__codelineno-20-10" href="#__codelineno-20-10"></a>
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<a id="__codelineno-20-11" name="__codelineno-20-11" href="#__codelineno-20-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-20-12" name="__codelineno-20-12" href="#__codelineno-20-12"></a><span class="n">list</span><span class="p">.</span><span class="na">add</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
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<a id="__codelineno-20-13" name="__codelineno-20-13" href="#__codelineno-20-13"></a>
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<a id="__codelineno-20-14" name="__codelineno-20-14" href="#__codelineno-20-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-20-15" name="__codelineno-20-15" href="#__codelineno-20-15"></a><span class="n">list</span><span class="p">.</span><span class="na">remove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-21-1" name="__codelineno-21-1" href="#__codelineno-21-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-21-2" name="__codelineno-21-2" href="#__codelineno-21-2"></a><span class="n">list</span><span class="p">.</span><span class="n">clear</span><span class="p">();</span>
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<a id="__codelineno-21-3" name="__codelineno-21-3" href="#__codelineno-21-3"></a>
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<a id="__codelineno-21-4" name="__codelineno-21-4" href="#__codelineno-21-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-21-5" name="__codelineno-21-5" href="#__codelineno-21-5"></a><span class="n">list</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
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<a id="__codelineno-21-6" name="__codelineno-21-6" href="#__codelineno-21-6"></a><span class="n">list</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
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<a id="__codelineno-21-7" name="__codelineno-21-7" href="#__codelineno-21-7"></a><span class="n">list</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
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<a id="__codelineno-21-8" name="__codelineno-21-8" href="#__codelineno-21-8"></a><span class="n">list</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
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<a id="__codelineno-21-9" name="__codelineno-21-9" href="#__codelineno-21-9"></a><span class="n">list</span><span class="p">.</span><span class="n">push_back</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
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<a id="__codelineno-21-10" name="__codelineno-21-10" href="#__codelineno-21-10"></a>
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<a id="__codelineno-21-11" name="__codelineno-21-11" href="#__codelineno-21-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-21-12" name="__codelineno-21-12" href="#__codelineno-21-12"></a><span class="n">list</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
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<a id="__codelineno-21-13" name="__codelineno-21-13" href="#__codelineno-21-13"></a>
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<a id="__codelineno-21-14" name="__codelineno-21-14" href="#__codelineno-21-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-21-15" name="__codelineno-21-15" href="#__codelineno-21-15"></a><span class="n">list</span><span class="p">.</span><span class="n">erase</span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">begin</span><span class="p">()</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-22-1" name="__codelineno-22-1" href="#__codelineno-22-1"></a><span class="sd">""" 清空列表 """</span>
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<a id="__codelineno-22-2" name="__codelineno-22-2" href="#__codelineno-22-2"></a><span class="nb">list</span><span class="o">.</span><span class="n">clear</span><span class="p">()</span>
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<a id="__codelineno-22-3" name="__codelineno-22-3" href="#__codelineno-22-3"></a>
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<a id="__codelineno-22-4" name="__codelineno-22-4" href="#__codelineno-22-4"></a><span class="sd">""" 尾部添加元素 """</span>
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<a id="__codelineno-22-5" name="__codelineno-22-5" href="#__codelineno-22-5"></a><span class="nb">list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
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<a id="__codelineno-22-6" name="__codelineno-22-6" href="#__codelineno-22-6"></a><span class="nb">list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
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<a id="__codelineno-22-7" name="__codelineno-22-7" href="#__codelineno-22-7"></a><span class="nb">list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
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<a id="__codelineno-22-8" name="__codelineno-22-8" href="#__codelineno-22-8"></a><span class="nb">list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
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<a id="__codelineno-22-9" name="__codelineno-22-9" href="#__codelineno-22-9"></a><span class="nb">list</span><span class="o">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
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<a id="__codelineno-22-10" name="__codelineno-22-10" href="#__codelineno-22-10"></a>
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<a id="__codelineno-22-11" name="__codelineno-22-11" href="#__codelineno-22-11"></a><span class="sd">""" 中间插入元素 """</span>
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<a id="__codelineno-22-12" name="__codelineno-22-12" href="#__codelineno-22-12"></a><span class="nb">list</span><span class="o">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span> <span class="mi">6</span><span class="p">)</span> <span class="c1"># 在索引 3 处插入数字 6</span>
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<a id="__codelineno-22-13" name="__codelineno-22-13" href="#__codelineno-22-13"></a>
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<a id="__codelineno-22-14" name="__codelineno-22-14" href="#__codelineno-22-14"></a><span class="sd">""" 删除元素 """</span>
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<a id="__codelineno-22-15" name="__codelineno-22-15" href="#__codelineno-22-15"></a><span class="nb">list</span><span class="o">.</span><span class="n">pop</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span> <span class="c1"># 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-23-1" name="__codelineno-23-1" href="#__codelineno-23-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-23-2" name="__codelineno-23-2" href="#__codelineno-23-2"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="kc">nil</span>
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<a id="__codelineno-23-3" name="__codelineno-23-3" href="#__codelineno-23-3"></a>
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<a id="__codelineno-23-4" name="__codelineno-23-4" href="#__codelineno-23-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-23-5" name="__codelineno-23-5" href="#__codelineno-23-5"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span>
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<a id="__codelineno-23-6" name="__codelineno-23-6" href="#__codelineno-23-6"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="mi">3</span><span class="p">)</span>
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<a id="__codelineno-23-7" name="__codelineno-23-7" href="#__codelineno-23-7"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="mi">2</span><span class="p">)</span>
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<a id="__codelineno-23-8" name="__codelineno-23-8" href="#__codelineno-23-8"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="mi">5</span><span class="p">)</span>
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<a id="__codelineno-23-9" name="__codelineno-23-9" href="#__codelineno-23-9"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="mi">4</span><span class="p">)</span>
|
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|
<a id="__codelineno-23-10" name="__codelineno-23-10" href="#__codelineno-23-10"></a>
|
|
|
<a id="__codelineno-23-11" name="__codelineno-23-11" href="#__codelineno-23-11"></a><span class="cm">/* 中间插入元素 */</span>
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|
<a id="__codelineno-23-12" name="__codelineno-23-12" href="#__codelineno-23-12"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nb">append</span><span class="p">([]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">},</span><span class="w"> </span><span class="nx">list</span><span class="p">[</span><span class="mi">3</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
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|
<a id="__codelineno-23-13" name="__codelineno-23-13" href="#__codelineno-23-13"></a>
|
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|
<a id="__codelineno-23-14" name="__codelineno-23-14" href="#__codelineno-23-14"></a><span class="cm">/* 删除元素 */</span>
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|
<a id="__codelineno-23-15" name="__codelineno-23-15" href="#__codelineno-23-15"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">[:</span><span class="mi">3</span><span class="p">],</span><span class="w"> </span><span class="nx">list</span><span class="p">[</span><span class="mi">4</span><span class="p">:]</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-24-1" name="__codelineno-24-1" href="#__codelineno-24-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-24-2" name="__codelineno-24-2" href="#__codelineno-24-2"></a><span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
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<a id="__codelineno-24-3" name="__codelineno-24-3" href="#__codelineno-24-3"></a>
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<a id="__codelineno-24-4" name="__codelineno-24-4" href="#__codelineno-24-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-24-5" name="__codelineno-24-5" href="#__codelineno-24-5"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
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<a id="__codelineno-24-6" name="__codelineno-24-6" href="#__codelineno-24-6"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
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<a id="__codelineno-24-7" name="__codelineno-24-7" href="#__codelineno-24-7"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
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<a id="__codelineno-24-8" name="__codelineno-24-8" href="#__codelineno-24-8"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
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<a id="__codelineno-24-9" name="__codelineno-24-9" href="#__codelineno-24-9"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
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<a id="__codelineno-24-10" name="__codelineno-24-10" href="#__codelineno-24-10"></a>
|
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|
<a id="__codelineno-24-11" name="__codelineno-24-11" href="#__codelineno-24-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-24-12" name="__codelineno-24-12" href="#__codelineno-24-12"></a><span class="nx">list</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span>
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<a id="__codelineno-24-13" name="__codelineno-24-13" href="#__codelineno-24-13"></a>
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<a id="__codelineno-24-14" name="__codelineno-24-14" href="#__codelineno-24-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-24-15" name="__codelineno-24-15" href="#__codelineno-24-15"></a><span class="nx">list</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-25-1" name="__codelineno-25-1" href="#__codelineno-25-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-25-2" name="__codelineno-25-2" href="#__codelineno-25-2"></a><span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
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<a id="__codelineno-25-3" name="__codelineno-25-3" href="#__codelineno-25-3"></a>
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<a id="__codelineno-25-4" name="__codelineno-25-4" href="#__codelineno-25-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-25-5" name="__codelineno-25-5" href="#__codelineno-25-5"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">1</span><span class="p">);</span>
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<a id="__codelineno-25-6" name="__codelineno-25-6" href="#__codelineno-25-6"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">3</span><span class="p">);</span>
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<a id="__codelineno-25-7" name="__codelineno-25-7" href="#__codelineno-25-7"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">2</span><span class="p">);</span>
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<a id="__codelineno-25-8" name="__codelineno-25-8" href="#__codelineno-25-8"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">5</span><span class="p">);</span>
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<a id="__codelineno-25-9" name="__codelineno-25-9" href="#__codelineno-25-9"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(</span><span class="mf">4</span><span class="p">);</span>
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<a id="__codelineno-25-10" name="__codelineno-25-10" href="#__codelineno-25-10"></a>
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<a id="__codelineno-25-11" name="__codelineno-25-11" href="#__codelineno-25-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-25-12" name="__codelineno-25-12" href="#__codelineno-25-12"></a><span class="nx">list</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">0</span><span class="p">,</span><span class="w"> </span><span class="mf">6</span><span class="p">);</span>
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<a id="__codelineno-25-13" name="__codelineno-25-13" href="#__codelineno-25-13"></a>
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<a id="__codelineno-25-14" name="__codelineno-25-14" href="#__codelineno-25-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-25-15" name="__codelineno-25-15" href="#__codelineno-25-15"></a><span class="nx">list</span><span class="p">.</span><span class="nx">splice</span><span class="p">(</span><span class="mf">3</span><span class="p">,</span><span class="w"> </span><span class="mf">1</span><span class="p">);</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-26-1" name="__codelineno-26-1" href="#__codelineno-26-1"></a>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-27-1" name="__codelineno-27-1" href="#__codelineno-27-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-27-2" name="__codelineno-27-2" href="#__codelineno-27-2"></a><span class="n">list</span><span class="p">.</span><span class="n">Clear</span><span class="p">();</span>
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<a id="__codelineno-27-3" name="__codelineno-27-3" href="#__codelineno-27-3"></a>
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<a id="__codelineno-27-4" name="__codelineno-27-4" href="#__codelineno-27-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-27-5" name="__codelineno-27-5" href="#__codelineno-27-5"></a><span class="n">list</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">1</span><span class="p">);</span>
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<a id="__codelineno-27-6" name="__codelineno-27-6" href="#__codelineno-27-6"></a><span class="n">list</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
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<a id="__codelineno-27-7" name="__codelineno-27-7" href="#__codelineno-27-7"></a><span class="n">list</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">2</span><span class="p">);</span>
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<a id="__codelineno-27-8" name="__codelineno-27-8" href="#__codelineno-27-8"></a><span class="n">list</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">5</span><span class="p">);</span>
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<a id="__codelineno-27-9" name="__codelineno-27-9" href="#__codelineno-27-9"></a><span class="n">list</span><span class="p">.</span><span class="n">Add</span><span class="p">(</span><span class="m">4</span><span class="p">);</span>
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<a id="__codelineno-27-10" name="__codelineno-27-10" href="#__codelineno-27-10"></a>
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<a id="__codelineno-27-11" name="__codelineno-27-11" href="#__codelineno-27-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-27-12" name="__codelineno-27-12" href="#__codelineno-27-12"></a><span class="n">list</span><span class="p">.</span><span class="n">Insert</span><span class="p">(</span><span class="m">3</span><span class="p">,</span><span class="w"> </span><span class="m">6</span><span class="p">);</span>
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<a id="__codelineno-27-13" name="__codelineno-27-13" href="#__codelineno-27-13"></a>
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<a id="__codelineno-27-14" name="__codelineno-27-14" href="#__codelineno-27-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-27-15" name="__codelineno-27-15" href="#__codelineno-27-15"></a><span class="n">list</span><span class="p">.</span><span class="n">RemoveAt</span><span class="p">(</span><span class="m">3</span><span class="p">);</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-28-1" name="__codelineno-28-1" href="#__codelineno-28-1"></a><span class="cm">/* 清空列表 */</span>
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<a id="__codelineno-28-2" name="__codelineno-28-2" href="#__codelineno-28-2"></a><span class="n">list</span><span class="p">.</span><span class="bp">removeAll</span><span class="p">()</span>
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<a id="__codelineno-28-3" name="__codelineno-28-3" href="#__codelineno-28-3"></a>
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<a id="__codelineno-28-4" name="__codelineno-28-4" href="#__codelineno-28-4"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-28-5" name="__codelineno-28-5" href="#__codelineno-28-5"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">)</span>
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<a id="__codelineno-28-6" name="__codelineno-28-6" href="#__codelineno-28-6"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">)</span>
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<a id="__codelineno-28-7" name="__codelineno-28-7" href="#__codelineno-28-7"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">)</span>
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<a id="__codelineno-28-8" name="__codelineno-28-8" href="#__codelineno-28-8"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">)</span>
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<a id="__codelineno-28-9" name="__codelineno-28-9" href="#__codelineno-28-9"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">)</span>
|
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<a id="__codelineno-28-10" name="__codelineno-28-10" href="#__codelineno-28-10"></a>
|
|
|
<a id="__codelineno-28-11" name="__codelineno-28-11" href="#__codelineno-28-11"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-28-12" name="__codelineno-28-12" href="#__codelineno-28-12"></a><span class="n">list</span><span class="p">.</span><span class="bp">insert</span><span class="p">(</span><span class="mi">6</span><span class="p">,</span> <span class="n">at</span><span class="p">:</span> <span class="mi">3</span><span class="p">)</span> <span class="c1">// 在索引 3 处插入数字 6</span>
|
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<a id="__codelineno-28-13" name="__codelineno-28-13" href="#__codelineno-28-13"></a>
|
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|
<a id="__codelineno-28-14" name="__codelineno-28-14" href="#__codelineno-28-14"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-28-15" name="__codelineno-28-15" href="#__codelineno-28-15"></a><span class="n">list</span><span class="p">.</span><span class="n">remove</span><span class="p">(</span><span class="n">at</span><span class="p">:</span> <span class="mi">3</span><span class="p">)</span> <span class="c1">// 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-29-1" name="__codelineno-29-1" href="#__codelineno-29-1"></a><span class="c1">// 清空列表</span>
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<a id="__codelineno-29-2" name="__codelineno-29-2" href="#__codelineno-29-2"></a><span class="n">list</span><span class="p">.</span><span class="n">clearRetainingCapacity</span><span class="p">();</span>
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<a id="__codelineno-29-3" name="__codelineno-29-3" href="#__codelineno-29-3"></a>
|
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<a id="__codelineno-29-4" name="__codelineno-29-4" href="#__codelineno-29-4"></a><span class="c1">// 尾部添加元素</span>
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<a id="__codelineno-29-5" name="__codelineno-29-5" href="#__codelineno-29-5"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">1</span><span class="p">);</span>
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<a id="__codelineno-29-6" name="__codelineno-29-6" href="#__codelineno-29-6"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span>
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<a id="__codelineno-29-7" name="__codelineno-29-7" href="#__codelineno-29-7"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">2</span><span class="p">);</span>
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<a id="__codelineno-29-8" name="__codelineno-29-8" href="#__codelineno-29-8"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">5</span><span class="p">);</span>
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<a id="__codelineno-29-9" name="__codelineno-29-9" href="#__codelineno-29-9"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="mi">4</span><span class="p">);</span>
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<a id="__codelineno-29-10" name="__codelineno-29-10" href="#__codelineno-29-10"></a>
|
|
|
<a id="__codelineno-29-11" name="__codelineno-29-11" href="#__codelineno-29-11"></a><span class="c1">// 中间插入元素</span>
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<a id="__codelineno-29-12" name="__codelineno-29-12" href="#__codelineno-29-12"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="mi">3</span><span class="p">,</span><span class="w"> </span><span class="mi">6</span><span class="p">);</span><span class="w"> </span><span class="c1">// 在索引 3 处插入数字 6</span>
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<a id="__codelineno-29-13" name="__codelineno-29-13" href="#__codelineno-29-13"></a>
|
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|
<a id="__codelineno-29-14" name="__codelineno-29-14" href="#__codelineno-29-14"></a><span class="c1">// 删除元素</span>
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<a id="__codelineno-29-15" name="__codelineno-29-15" href="#__codelineno-29-15"></a><span class="n">_</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">orderedRemove</span><span class="p">(</span><span class="mi">3</span><span class="p">);</span><span class="w"> </span><span class="c1">// 删除索引 3 处的元素</span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<p><strong>遍历列表</strong>。与数组一样，列表可以使用索引遍历，也可以使用 <code>for-each</code> 直接遍历。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="4:10"><input checked="checked" id="__tabbed_4_1" name="__tabbed_4" type="radio" /><input id="__tabbed_4_2" name="__tabbed_4" type="radio" /><input id="__tabbed_4_3" name="__tabbed_4" type="radio" /><input id="__tabbed_4_4" name="__tabbed_4" type="radio" /><input id="__tabbed_4_5" name="__tabbed_4" type="radio" /><input id="__tabbed_4_6" name="__tabbed_4" type="radio" /><input id="__tabbed_4_7" name="__tabbed_4" type="radio" /><input id="__tabbed_4_8" name="__tabbed_4" type="radio" /><input id="__tabbed_4_9" name="__tabbed_4" type="radio" /><input id="__tabbed_4_10" name="__tabbed_4" type="radio" /><div class="tabbed-labels"><label for="__tabbed_4_1">Java</label><label for="__tabbed_4_2">C++</label><label for="__tabbed_4_3">Python</label><label for="__tabbed_4_4">Go</label><label for="__tabbed_4_5">JavaScript</label><label for="__tabbed_4_6">TypeScript</label><label for="__tabbed_4_7">C</label><label for="__tabbed_4_8">C#</label><label for="__tabbed_4_9">Swift</label><label for="__tabbed_4_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-30-1" name="__codelineno-30-1" href="#__codelineno-30-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
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<a id="__codelineno-30-2" name="__codelineno-30-2" href="#__codelineno-30-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
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<a id="__codelineno-30-3" name="__codelineno-30-3" href="#__codelineno-30-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="na">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-30-4" name="__codelineno-30-4" href="#__codelineno-30-4"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
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<a id="__codelineno-30-5" name="__codelineno-30-5" href="#__codelineno-30-5"></a><span class="p">}</span>
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<a id="__codelineno-30-6" name="__codelineno-30-6" href="#__codelineno-30-6"></a>
|
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<a id="__codelineno-30-7" name="__codelineno-30-7" href="#__codelineno-30-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
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<a id="__codelineno-30-8" name="__codelineno-30-8" href="#__codelineno-30-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
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<a id="__codelineno-30-9" name="__codelineno-30-9" href="#__codelineno-30-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="p">:</span><span class="w"> </span><span class="n">list</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-30-10" name="__codelineno-30-10" href="#__codelineno-30-10"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
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<a id="__codelineno-30-11" name="__codelineno-30-11" href="#__codelineno-30-11"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-31-1" name="__codelineno-31-1" href="#__codelineno-31-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
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<a id="__codelineno-31-2" name="__codelineno-31-2" href="#__codelineno-31-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
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<a id="__codelineno-31-3" name="__codelineno-31-3" href="#__codelineno-31-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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|
<a id="__codelineno-31-4" name="__codelineno-31-4" href="#__codelineno-31-4"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-31-5" name="__codelineno-31-5" href="#__codelineno-31-5"></a><span class="p">}</span>
|
|
|
<a id="__codelineno-31-6" name="__codelineno-31-6" href="#__codelineno-31-6"></a>
|
|
|
<a id="__codelineno-31-7" name="__codelineno-31-7" href="#__codelineno-31-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
|
|
<a id="__codelineno-31-8" name="__codelineno-31-8" href="#__codelineno-31-8"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-31-9" name="__codelineno-31-9" href="#__codelineno-31-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="n">list</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-31-10" name="__codelineno-31-10" href="#__codelineno-31-10"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
|
|
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<a id="__codelineno-31-11" name="__codelineno-31-11" href="#__codelineno-31-11"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-32-1" name="__codelineno-32-1" href="#__codelineno-32-1"></a><span class="sd">""" 通过索引遍历列表 """</span>
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|
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<a id="__codelineno-32-2" name="__codelineno-32-2" href="#__codelineno-32-2"></a><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
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<a id="__codelineno-32-3" name="__codelineno-32-3" href="#__codelineno-32-3"></a><span class="k">for</span> <span class="n">i</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="nb">len</span><span class="p">(</span><span class="nb">list</span><span class="p">)):</span>
|
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<a id="__codelineno-32-4" name="__codelineno-32-4" href="#__codelineno-32-4"></a> <span class="n">count</span> <span class="o">+=</span> <span class="mi">1</span>
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<a id="__codelineno-32-5" name="__codelineno-32-5" href="#__codelineno-32-5"></a>
|
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<a id="__codelineno-32-6" name="__codelineno-32-6" href="#__codelineno-32-6"></a><span class="sd">""" 直接遍历列表元素 """</span>
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<a id="__codelineno-32-7" name="__codelineno-32-7" href="#__codelineno-32-7"></a><span class="n">count</span> <span class="o">=</span> <span class="mi">0</span>
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<a id="__codelineno-32-8" name="__codelineno-32-8" href="#__codelineno-32-8"></a><span class="k">for</span> <span class="n">n</span> <span class="ow">in</span> <span class="nb">list</span><span class="p">:</span>
|
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<a id="__codelineno-32-9" name="__codelineno-32-9" href="#__codelineno-32-9"></a> <span class="n">count</span> <span class="o">+=</span> <span class="mi">1</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-33-1" name="__codelineno-33-1" href="#__codelineno-33-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
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<a id="__codelineno-33-2" name="__codelineno-33-2" href="#__codelineno-33-2"></a><span class="nx">count</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span>
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<a id="__codelineno-33-3" name="__codelineno-33-3" href="#__codelineno-33-3"></a><span class="k">for</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">list</span><span class="p">);</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-33-4" name="__codelineno-33-4" href="#__codelineno-33-4"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span>
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<a id="__codelineno-33-5" name="__codelineno-33-5" href="#__codelineno-33-5"></a><span class="p">}</span>
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<a id="__codelineno-33-6" name="__codelineno-33-6" href="#__codelineno-33-6"></a>
|
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<a id="__codelineno-33-7" name="__codelineno-33-7" href="#__codelineno-33-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
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<a id="__codelineno-33-8" name="__codelineno-33-8" href="#__codelineno-33-8"></a><span class="nx">count</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="mi">0</span>
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<a id="__codelineno-33-9" name="__codelineno-33-9" href="#__codelineno-33-9"></a><span class="k">for</span><span class="w"> </span><span class="k">range</span><span class="w"> </span><span class="nx">list</span><span class="w"> </span><span class="p">{</span>
|
|
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<a id="__codelineno-33-10" name="__codelineno-33-10" href="#__codelineno-33-10"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span>
|
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|
<a id="__codelineno-33-11" name="__codelineno-33-11" href="#__codelineno-33-11"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-34-1" name="__codelineno-34-1" href="#__codelineno-34-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
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<a id="__codelineno-34-2" name="__codelineno-34-2" href="#__codelineno-34-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
|
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<a id="__codelineno-34-3" name="__codelineno-34-3" href="#__codelineno-34-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-34-4" name="__codelineno-34-4" href="#__codelineno-34-4"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-34-5" name="__codelineno-34-5" href="#__codelineno-34-5"></a><span class="p">}</span>
|
|
|
<a id="__codelineno-34-6" name="__codelineno-34-6" href="#__codelineno-34-6"></a>
|
|
|
<a id="__codelineno-34-7" name="__codelineno-34-7" href="#__codelineno-34-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
|
|
<a id="__codelineno-34-8" name="__codelineno-34-8" href="#__codelineno-34-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-34-9" name="__codelineno-34-9" href="#__codelineno-34-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">n</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">list</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-34-10" name="__codelineno-34-10" href="#__codelineno-34-10"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-34-11" name="__codelineno-34-11" href="#__codelineno-34-11"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
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|
|
<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-35-1" name="__codelineno-35-1" href="#__codelineno-35-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
|
|
<a id="__codelineno-35-2" name="__codelineno-35-2" href="#__codelineno-35-2"></a><span class="kd">let</span><span class="w"> </span><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-35-3" name="__codelineno-35-3" href="#__codelineno-35-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">list</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-35-4" name="__codelineno-35-4" href="#__codelineno-35-4"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-35-5" name="__codelineno-35-5" href="#__codelineno-35-5"></a><span class="p">}</span>
|
|
|
<a id="__codelineno-35-6" name="__codelineno-35-6" href="#__codelineno-35-6"></a>
|
|
|
<a id="__codelineno-35-7" name="__codelineno-35-7" href="#__codelineno-35-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
|
|
<a id="__codelineno-35-8" name="__codelineno-35-8" href="#__codelineno-35-8"></a><span class="nx">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-35-9" name="__codelineno-35-9" href="#__codelineno-35-9"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">const</span><span class="w"> </span><span class="nx">n</span><span class="w"> </span><span class="k">of</span><span class="w"> </span><span class="nx">list</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-35-10" name="__codelineno-35-10" href="#__codelineno-35-10"></a><span class="w"> </span><span class="nx">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-35-11" name="__codelineno-35-11" href="#__codelineno-35-11"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
|
|
|
<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-36-1" name="__codelineno-36-1" href="#__codelineno-36-1"></a>
|
|
|
</code></pre></div>
|
|
|
</div>
|
|
|
<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-37-1" name="__codelineno-37-1" href="#__codelineno-37-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
|
|
<a id="__codelineno-37-2" name="__codelineno-37-2" href="#__codelineno-37-2"></a><span class="kt">int</span><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-37-3" name="__codelineno-37-3" href="#__codelineno-37-3"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">Count</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
|
|
|
<a id="__codelineno-37-4" name="__codelineno-37-4" href="#__codelineno-37-4"></a><span class="p">{</span>
|
|
|
<a id="__codelineno-37-5" name="__codelineno-37-5" href="#__codelineno-37-5"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-37-6" name="__codelineno-37-6" href="#__codelineno-37-6"></a><span class="p">}</span>
|
|
|
<a id="__codelineno-37-7" name="__codelineno-37-7" href="#__codelineno-37-7"></a>
|
|
|
<a id="__codelineno-37-8" name="__codelineno-37-8" href="#__codelineno-37-8"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
|
|
<a id="__codelineno-37-9" name="__codelineno-37-9" href="#__codelineno-37-9"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-37-10" name="__codelineno-37-10" href="#__codelineno-37-10"></a><span class="k">foreach</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">n</span><span class="w"> </span><span class="k">in</span><span class="w"> </span><span class="n">list</span><span class="p">)</span>
|
|
|
<a id="__codelineno-37-11" name="__codelineno-37-11" href="#__codelineno-37-11"></a><span class="p">{</span>
|
|
|
<a id="__codelineno-37-12" name="__codelineno-37-12" href="#__codelineno-37-12"></a><span class="w"> </span><span class="n">count</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-37-13" name="__codelineno-37-13" href="#__codelineno-37-13"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
|
|
|
<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-38-1" name="__codelineno-38-1" href="#__codelineno-38-1"></a><span class="cm">/* 通过索引遍历列表 */</span>
|
|
|
<a id="__codelineno-38-2" name="__codelineno-38-2" href="#__codelineno-38-2"></a><span class="kd">var</span> <span class="nv">count</span> <span class="p">=</span> <span class="mi">0</span>
|
|
|
<a id="__codelineno-38-3" name="__codelineno-38-3" href="#__codelineno-38-3"></a><span class="k">for</span> <span class="kc">_</span> <span class="k">in</span> <span class="n">list</span><span class="p">.</span><span class="bp">indices</span> <span class="p">{</span>
|
|
|
<a id="__codelineno-38-4" name="__codelineno-38-4" href="#__codelineno-38-4"></a> <span class="bp">count</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
|
<a id="__codelineno-38-5" name="__codelineno-38-5" href="#__codelineno-38-5"></a><span class="p">}</span>
|
|
|
<a id="__codelineno-38-6" name="__codelineno-38-6" href="#__codelineno-38-6"></a>
|
|
|
<a id="__codelineno-38-7" name="__codelineno-38-7" href="#__codelineno-38-7"></a><span class="cm">/* 直接遍历列表元素 */</span>
|
|
|
<a id="__codelineno-38-8" name="__codelineno-38-8" href="#__codelineno-38-8"></a><span class="bp">count</span> <span class="p">=</span> <span class="mi">0</span>
|
|
|
<a id="__codelineno-38-9" name="__codelineno-38-9" href="#__codelineno-38-9"></a><span class="k">for</span> <span class="kc">_</span> <span class="k">in</span> <span class="n">list</span> <span class="p">{</span>
|
|
|
<a id="__codelineno-38-10" name="__codelineno-38-10" href="#__codelineno-38-10"></a> <span class="bp">count</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
|
<a id="__codelineno-38-11" name="__codelineno-38-11" href="#__codelineno-38-11"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
|
|
|
<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-39-1" name="__codelineno-39-1" href="#__codelineno-39-1"></a><span class="c1">// 通过索引遍历列表</span>
|
|
|
<a id="__codelineno-39-2" name="__codelineno-39-2" href="#__codelineno-39-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">count</span><span class="o">:</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-39-3" name="__codelineno-39-3" href="#__codelineno-39-3"></a><span class="kr">var</span><span class="w"> </span><span class="n">i</span><span class="o">:</span><span class="w"> </span><span class="kt">i32</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
|
|
|
<a id="__codelineno-39-4" name="__codelineno-39-4" href="#__codelineno-39-4"></a><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">.</span><span class="n">len</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">i</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
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|
<a id="__codelineno-39-5" name="__codelineno-39-5" href="#__codelineno-39-5"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-39-6" name="__codelineno-39-6" href="#__codelineno-39-6"></a><span class="p">}</span>
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<a id="__codelineno-39-7" name="__codelineno-39-7" href="#__codelineno-39-7"></a>
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<a id="__codelineno-39-8" name="__codelineno-39-8" href="#__codelineno-39-8"></a><span class="c1">// 直接遍历列表元素</span>
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<a id="__codelineno-39-9" name="__codelineno-39-9" href="#__codelineno-39-9"></a><span class="n">count</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span>
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<a id="__codelineno-39-10" name="__codelineno-39-10" href="#__codelineno-39-10"></a><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">)</span><span class="w"> </span><span class="o">|</span><span class="n">_</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-39-11" name="__codelineno-39-11" href="#__codelineno-39-11"></a><span class="w"> </span><span class="n">count</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-39-12" name="__codelineno-39-12" href="#__codelineno-39-12"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<p><strong>拼接两个列表</strong>。再创建一个新列表 <code>list1</code> ，我们可以将其中一个列表拼接到另一个的尾部。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="5:10"><input checked="checked" id="__tabbed_5_1" name="__tabbed_5" type="radio" /><input id="__tabbed_5_2" name="__tabbed_5" type="radio" /><input id="__tabbed_5_3" name="__tabbed_5" type="radio" /><input id="__tabbed_5_4" name="__tabbed_5" type="radio" /><input id="__tabbed_5_5" name="__tabbed_5" type="radio" /><input id="__tabbed_5_6" name="__tabbed_5" type="radio" /><input id="__tabbed_5_7" name="__tabbed_5" type="radio" /><input id="__tabbed_5_8" name="__tabbed_5" type="radio" /><input id="__tabbed_5_9" name="__tabbed_5" type="radio" /><input id="__tabbed_5_10" name="__tabbed_5" type="radio" /><div class="tabbed-labels"><label for="__tabbed_5_1">Java</label><label for="__tabbed_5_2">C++</label><label for="__tabbed_5_3">Python</label><label for="__tabbed_5_4">Go</label><label for="__tabbed_5_5">JavaScript</label><label for="__tabbed_5_6">TypeScript</label><label for="__tabbed_5_7">C</label><label for="__tabbed_5_8">C#</label><label for="__tabbed_5_9">Swift</label><label for="__tabbed_5_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-40-1" name="__codelineno-40-1" href="#__codelineno-40-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-40-2" name="__codelineno-40-2" href="#__codelineno-40-2"></a><span class="n">List</span><span class="o"><</span><span class="n">Integer</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">ArrayList</span><span class="o"><></span><span class="p">(</span><span class="n">Arrays</span><span class="p">.</span><span class="na">asList</span><span class="p">(</span><span class="k">new</span><span class="w"> </span><span class="n">Integer</span><span class="o">[]</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">}));</span>
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<a id="__codelineno-40-3" name="__codelineno-40-3" href="#__codelineno-40-3"></a><span class="n">list</span><span class="p">.</span><span class="na">addAll</span><span class="p">(</span><span class="n">list1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-41-1" name="__codelineno-41-1" href="#__codelineno-41-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-41-2" name="__codelineno-41-2" href="#__codelineno-41-2"></a><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-41-3" name="__codelineno-41-3" href="#__codelineno-41-3"></a><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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<a id="__codelineno-41-4" name="__codelineno-41-4" href="#__codelineno-41-4"></a><span class="n">list</span><span class="p">.</span><span class="n">insert</span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">end</span><span class="p">(),</span><span class="w"> </span><span class="n">list1</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">list1</span><span class="p">.</span><span class="n">end</span><span class="p">());</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-42-1" name="__codelineno-42-1" href="#__codelineno-42-1"></a><span class="sd">""" 拼接两个列表 """</span>
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<a id="__codelineno-42-2" name="__codelineno-42-2" href="#__codelineno-42-2"></a><span class="n">list1</span> <span class="o">=</span> <span class="p">[</span><span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span>
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<a id="__codelineno-42-3" name="__codelineno-42-3" href="#__codelineno-42-3"></a><span class="nb">list</span> <span class="o">+=</span> <span class="n">list1</span> <span class="c1"># 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-43-1" name="__codelineno-43-1" href="#__codelineno-43-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-43-2" name="__codelineno-43-2" href="#__codelineno-43-2"></a><span class="nx">list1</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="p">{</span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="p">}</span>
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<a id="__codelineno-43-3" name="__codelineno-43-3" href="#__codelineno-43-3"></a><span class="nx">list</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">list</span><span class="p">,</span><span class="w"> </span><span class="nx">list1</span><span class="o">...</span><span class="p">)</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-44-1" name="__codelineno-44-1" href="#__codelineno-44-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-44-2" name="__codelineno-44-2" href="#__codelineno-44-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
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<a id="__codelineno-44-3" name="__codelineno-44-3" href="#__codelineno-44-3"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">list1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-45-1" name="__codelineno-45-1" href="#__codelineno-45-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-45-2" name="__codelineno-45-2" href="#__codelineno-45-2"></a><span class="kd">const</span><span class="w"> </span><span class="nx">list1</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="p">[</span><span class="mf">6</span><span class="p">,</span><span class="w"> </span><span class="mf">8</span><span class="p">,</span><span class="w"> </span><span class="mf">7</span><span class="p">,</span><span class="w"> </span><span class="mf">10</span><span class="p">,</span><span class="w"> </span><span class="mf">9</span><span class="p">];</span>
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<a id="__codelineno-45-3" name="__codelineno-45-3" href="#__codelineno-45-3"></a><span class="nx">list</span><span class="p">.</span><span class="nx">push</span><span class="p">(...</span><span class="nx">list1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
|
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-46-1" name="__codelineno-46-1" href="#__codelineno-46-1"></a>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-47-1" name="__codelineno-47-1" href="#__codelineno-47-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-47-2" name="__codelineno-47-2" href="#__codelineno-47-2"></a><span class="n">List</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="p">()</span><span class="w"> </span><span class="p">{</span><span class="w"> </span><span class="m">6</span><span class="p">,</span><span class="w"> </span><span class="m">8</span><span class="p">,</span><span class="w"> </span><span class="m">7</span><span class="p">,</span><span class="w"> </span><span class="m">10</span><span class="p">,</span><span class="w"> </span><span class="m">9</span><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-47-3" name="__codelineno-47-3" href="#__codelineno-47-3"></a><span class="n">list</span><span class="p">.</span><span class="n">AddRange</span><span class="p">(</span><span class="n">list1</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-48-1" name="__codelineno-48-1" href="#__codelineno-48-1"></a><span class="cm">/* 拼接两个列表 */</span>
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<a id="__codelineno-48-2" name="__codelineno-48-2" href="#__codelineno-48-2"></a><span class="kd">let</span> <span class="nv">list1</span> <span class="p">=</span> <span class="p">[</span><span class="mi">6</span><span class="p">,</span> <span class="mi">8</span><span class="p">,</span> <span class="mi">7</span><span class="p">,</span> <span class="mi">10</span><span class="p">,</span> <span class="mi">9</span><span class="p">]</span>
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<a id="__codelineno-48-3" name="__codelineno-48-3" href="#__codelineno-48-3"></a><span class="n">list</span><span class="p">.</span><span class="n">append</span><span class="p">(</span><span class="n">contentsOf</span><span class="p">:</span> <span class="n">list1</span><span class="p">)</span> <span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-49-1" name="__codelineno-49-1" href="#__codelineno-49-1"></a><span class="c1">// 拼接两个列表</span>
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<a id="__codelineno-49-2" name="__codelineno-49-2" href="#__codelineno-49-2"></a><span class="kr">var</span><span class="w"> </span><span class="n">list1</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">ArrayList</span><span class="p">(</span><span class="kt">i32</span><span class="p">).</span><span class="n">init</span><span class="p">(</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">page_allocator</span><span class="p">);</span>
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<a id="__codelineno-49-3" name="__codelineno-49-3" href="#__codelineno-49-3"></a><span class="k">defer</span><span class="w"> </span><span class="n">list1</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
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<a id="__codelineno-49-4" name="__codelineno-49-4" href="#__codelineno-49-4"></a><span class="k">try</span><span class="w"> </span><span class="n">list1</span><span class="p">.</span><span class="n">appendSlice</span><span class="p">(</span><span class="o">&</span><span class="p">[</span><span class="n">_</span><span class="p">]</span><span class="kt">i32</span><span class="p">{</span><span class="w"> </span><span class="mi">6</span><span class="p">,</span><span class="w"> </span><span class="mi">8</span><span class="p">,</span><span class="w"> </span><span class="mi">7</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="mi">9</span><span class="w"> </span><span class="p">});</span>
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|
<a id="__codelineno-49-5" name="__codelineno-49-5" href="#__codelineno-49-5"></a><span class="k">try</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">insertSlice</span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">.</span><span class="n">len</span><span class="p">,</span><span class="w"> </span><span class="n">list1</span><span class="p">.</span><span class="n">items</span><span class="p">);</span><span class="w"> </span><span class="c1">// 将列表 list1 拼接到 list 之后</span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<p><strong>排序列表</strong>。排序也是常用的方法之一，完成列表排序后，我们就可以使用在数组类算法题中经常考察的「二分查找」和「双指针」算法了。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="6:10"><input checked="checked" id="__tabbed_6_1" name="__tabbed_6" type="radio" /><input id="__tabbed_6_2" name="__tabbed_6" type="radio" /><input id="__tabbed_6_3" name="__tabbed_6" type="radio" /><input id="__tabbed_6_4" name="__tabbed_6" type="radio" /><input id="__tabbed_6_5" name="__tabbed_6" type="radio" /><input id="__tabbed_6_6" name="__tabbed_6" type="radio" /><input id="__tabbed_6_7" name="__tabbed_6" type="radio" /><input id="__tabbed_6_8" name="__tabbed_6" type="radio" /><input id="__tabbed_6_9" name="__tabbed_6" type="radio" /><input id="__tabbed_6_10" name="__tabbed_6" type="radio" /><div class="tabbed-labels"><label for="__tabbed_6_1">Java</label><label for="__tabbed_6_2">C++</label><label for="__tabbed_6_3">Python</label><label for="__tabbed_6_4">Go</label><label for="__tabbed_6_5">JavaScript</label><label for="__tabbed_6_6">TypeScript</label><label for="__tabbed_6_7">C</label><label for="__tabbed_6_8">C#</label><label for="__tabbed_6_9">Swift</label><label for="__tabbed_6_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.java</span><pre><span></span><code><a id="__codelineno-50-1" name="__codelineno-50-1" href="#__codelineno-50-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-50-2" name="__codelineno-50-2" href="#__codelineno-50-2"></a><span class="n">Collections</span><span class="p">.</span><span class="na">sort</span><span class="p">(</span><span class="n">list</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cpp</span><pre><span></span><code><a id="__codelineno-51-1" name="__codelineno-51-1" href="#__codelineno-51-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-51-2" name="__codelineno-51-2" href="#__codelineno-51-2"></a><span class="n">sort</span><span class="p">(</span><span class="n">list</span><span class="p">.</span><span class="n">begin</span><span class="p">(),</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">end</span><span class="p">());</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.py</span><pre><span></span><code><a id="__codelineno-52-1" name="__codelineno-52-1" href="#__codelineno-52-1"></a><span class="sd">""" 排序列表 """</span>
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<a id="__codelineno-52-2" name="__codelineno-52-2" href="#__codelineno-52-2"></a><span class="nb">list</span><span class="o">.</span><span class="n">sort</span><span class="p">()</span> <span class="c1"># 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list_test.go</span><pre><span></span><code><a id="__codelineno-53-1" name="__codelineno-53-1" href="#__codelineno-53-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-53-2" name="__codelineno-53-2" href="#__codelineno-53-2"></a><span class="nx">sort</span><span class="p">.</span><span class="nx">Ints</span><span class="p">(</span><span class="nx">list</span><span class="p">)</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.js</span><pre><span></span><code><a id="__codelineno-54-1" name="__codelineno-54-1" href="#__codelineno-54-1"></a><span class="cm">/* 排序列表 */</span><span class="w"> </span>
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<a id="__codelineno-54-2" name="__codelineno-54-2" href="#__codelineno-54-2"></a><span class="nx">list</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.ts</span><pre><span></span><code><a id="__codelineno-55-1" name="__codelineno-55-1" href="#__codelineno-55-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-55-2" name="__codelineno-55-2" href="#__codelineno-55-2"></a><span class="nx">list</span><span class="p">.</span><span class="nx">sort</span><span class="p">((</span><span class="nx">a</span><span class="p">,</span><span class="w"> </span><span class="nx">b</span><span class="p">)</span><span class="w"> </span><span class="p">=></span><span class="w"> </span><span class="nx">a</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="nx">b</span><span class="p">);</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.c</span><pre><span></span><code><a id="__codelineno-56-1" name="__codelineno-56-1" href="#__codelineno-56-1"></a>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.cs</span><pre><span></span><code><a id="__codelineno-57-1" name="__codelineno-57-1" href="#__codelineno-57-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-57-2" name="__codelineno-57-2" href="#__codelineno-57-2"></a><span class="n">list</span><span class="p">.</span><span class="n">Sort</span><span class="p">();</span><span class="w"> </span><span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.swift</span><pre><span></span><code><a id="__codelineno-58-1" name="__codelineno-58-1" href="#__codelineno-58-1"></a><span class="cm">/* 排序列表 */</span>
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<a id="__codelineno-58-2" name="__codelineno-58-2" href="#__codelineno-58-2"></a><span class="n">list</span><span class="p">.</span><span class="bp">sort</span><span class="p">()</span> <span class="c1">// 排序后，列表元素从小到大排列</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">list.zig</span><pre><span></span><code><a id="__codelineno-59-1" name="__codelineno-59-1" href="#__codelineno-59-1"></a><span class="c1">// 排序列表</span>
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<a id="__codelineno-59-2" name="__codelineno-59-2" href="#__codelineno-59-2"></a><span class="n">std</span><span class="p">.</span><span class="n">sort</span><span class="p">.</span><span class="n">sort</span><span class="p">(</span><span class="kt">i32</span><span class="p">,</span><span class="w"> </span><span class="n">list</span><span class="p">.</span><span class="n">items</span><span class="p">,</span><span class="w"> </span><span class="p">{},</span><span class="w"> </span><span class="kr">comptime</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">sort</span><span class="p">.</span><span class="n">asc</span><span class="p">(</span><span class="kt">i32</span><span class="p">));</span>
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</code></pre></div>
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</div>
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</div>
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</div>
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<h2 id="432">4.3.2. 列表简易实现 *<a class="headerlink" href="#432" title="Permanent link">¶</a></h2>
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<p>为了帮助加深对列表的理解，我们在此提供一个列表的简易版本的实现。需要关注三个核心点：</p>
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<ul>
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<li><strong>初始容量</strong>：选取一个合理的数组的初始容量 <code>initialCapacity</code> 。在本示例中，我们选择 10 作为初始容量。</li>
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<li><strong>数量记录</strong>：需要声明一个变量 <code>size</code> ，用来记录列表当前有多少个元素，并随着元素插入与删除实时更新。根据此变量，可以定位列表的尾部，以及判断是否需要扩容。</li>
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<li><strong>扩容机制</strong>：插入元素有可能导致超出列表容量，此时需要扩容列表，方法是建立一个更大的数组来替换当前数组。需要给定一个扩容倍数 <code>extendRatio</code> ，在本示例中，我们规定每次将数组扩容至之前的 2 倍。</li>
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</ul>
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<p>本示例是为了帮助读者对如何实现列表产生直观的认识。实际编程语言中，列表的实现远比以下代码复杂且标准，感兴趣的读者可以查阅源码学习。</p>
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<div class="tabbed-set tabbed-alternate" data-tabs="7:10"><input checked="checked" id="__tabbed_7_1" name="__tabbed_7" type="radio" /><input id="__tabbed_7_2" name="__tabbed_7" type="radio" /><input id="__tabbed_7_3" name="__tabbed_7" type="radio" /><input id="__tabbed_7_4" name="__tabbed_7" type="radio" /><input id="__tabbed_7_5" name="__tabbed_7" type="radio" /><input id="__tabbed_7_6" name="__tabbed_7" type="radio" /><input id="__tabbed_7_7" name="__tabbed_7" type="radio" /><input id="__tabbed_7_8" name="__tabbed_7" type="radio" /><input id="__tabbed_7_9" name="__tabbed_7" type="radio" /><input id="__tabbed_7_10" name="__tabbed_7" type="radio" /><div class="tabbed-labels"><label for="__tabbed_7_1">Java</label><label for="__tabbed_7_2">C++</label><label for="__tabbed_7_3">Python</label><label for="__tabbed_7_4">Go</label><label for="__tabbed_7_5">JavaScript</label><label for="__tabbed_7_6">TypeScript</label><label for="__tabbed_7_7">C</label><label for="__tabbed_7_8">C#</label><label for="__tabbed_7_9">Swift</label><label for="__tabbed_7_10">Zig</label></div>
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<div class="tabbed-content">
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.java</span><pre><span></span><code><a id="__codelineno-60-1" name="__codelineno-60-1" href="#__codelineno-60-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-60-2" name="__codelineno-60-2" href="#__codelineno-60-2"></a><span class="kd">class</span> <span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-3" name="__codelineno-60-3" href="#__codelineno-60-3"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-60-4" name="__codelineno-60-4" href="#__codelineno-60-4"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-60-5" name="__codelineno-60-5" href="#__codelineno-60-5"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-60-6" name="__codelineno-60-6" href="#__codelineno-60-6"></a><span class="w"> </span><span class="kd">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-60-7" name="__codelineno-60-7" href="#__codelineno-60-7"></a>
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<a id="__codelineno-60-8" name="__codelineno-60-8" href="#__codelineno-60-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-60-9" name="__codelineno-60-9" href="#__codelineno-60-9"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-10" name="__codelineno-60-10" href="#__codelineno-60-10"></a><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">capacity</span><span class="o">]</span><span class="p">;</span>
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<a id="__codelineno-60-11" name="__codelineno-60-11" href="#__codelineno-60-11"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-60-12" name="__codelineno-60-12" href="#__codelineno-60-12"></a>
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<a id="__codelineno-60-13" name="__codelineno-60-13" href="#__codelineno-60-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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<a id="__codelineno-60-14" name="__codelineno-60-14" href="#__codelineno-60-14"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-15" name="__codelineno-60-15" href="#__codelineno-60-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">size</span><span class="p">;</span>
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<a id="__codelineno-60-16" name="__codelineno-60-16" href="#__codelineno-60-16"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-60-17" name="__codelineno-60-17" href="#__codelineno-60-17"></a>
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<a id="__codelineno-60-18" name="__codelineno-60-18" href="#__codelineno-60-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-60-19" name="__codelineno-60-19" href="#__codelineno-60-19"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-20" name="__codelineno-60-20" href="#__codelineno-60-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">capacity</span><span class="p">;</span>
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<a id="__codelineno-60-21" name="__codelineno-60-21" href="#__codelineno-60-21"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-60-22" name="__codelineno-60-22" href="#__codelineno-60-22"></a>
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<a id="__codelineno-60-23" name="__codelineno-60-23" href="#__codelineno-60-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-60-24" name="__codelineno-60-24" href="#__codelineno-60-24"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-25" name="__codelineno-60-25" href="#__codelineno-60-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-60-26" name="__codelineno-60-26" href="#__codelineno-60-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
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<a id="__codelineno-60-27" name="__codelineno-60-27" href="#__codelineno-60-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-60-28" name="__codelineno-60-28" href="#__codelineno-60-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
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<a id="__codelineno-60-29" name="__codelineno-60-29" href="#__codelineno-60-29"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-60-30" name="__codelineno-60-30" href="#__codelineno-60-30"></a>
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<a id="__codelineno-60-31" name="__codelineno-60-31" href="#__codelineno-60-31"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-60-32" name="__codelineno-60-32" href="#__codelineno-60-32"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-33" name="__codelineno-60-33" href="#__codelineno-60-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
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|
<a id="__codelineno-60-34" name="__codelineno-60-34" href="#__codelineno-60-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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|
<a id="__codelineno-60-35" name="__codelineno-60-35" href="#__codelineno-60-35"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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<a id="__codelineno-60-36" name="__codelineno-60-36" href="#__codelineno-60-36"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-60-37" name="__codelineno-60-37" href="#__codelineno-60-37"></a>
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|
<a id="__codelineno-60-38" name="__codelineno-60-38" href="#__codelineno-60-38"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-60-39" name="__codelineno-60-39" href="#__codelineno-60-39"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-40" name="__codelineno-60-40" href="#__codelineno-60-40"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-60-41" name="__codelineno-60-41" href="#__codelineno-60-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
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<a id="__codelineno-60-42" name="__codelineno-60-42" href="#__codelineno-60-42"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
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<a id="__codelineno-60-43" name="__codelineno-60-43" href="#__codelineno-60-43"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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|
|
<a id="__codelineno-60-44" name="__codelineno-60-44" href="#__codelineno-60-44"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-60-45" name="__codelineno-60-45" href="#__codelineno-60-45"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-60-46" name="__codelineno-60-46" href="#__codelineno-60-46"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-47" name="__codelineno-60-47" href="#__codelineno-60-47"></a>
|
|
|
<a id="__codelineno-60-48" name="__codelineno-60-48" href="#__codelineno-60-48"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
|
|
<a id="__codelineno-60-49" name="__codelineno-60-49" href="#__codelineno-60-49"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-60-50" name="__codelineno-60-50" href="#__codelineno-60-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
|
|
<a id="__codelineno-60-51" name="__codelineno-60-51" href="#__codelineno-60-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-60-52" name="__codelineno-60-52" href="#__codelineno-60-52"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
|
|
<a id="__codelineno-60-53" name="__codelineno-60-53" href="#__codelineno-60-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
|
|
<a id="__codelineno-60-54" name="__codelineno-60-54" href="#__codelineno-60-54"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-60-55" name="__codelineno-60-55" href="#__codelineno-60-55"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
|
|
<a id="__codelineno-60-56" name="__codelineno-60-56" href="#__codelineno-60-56"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
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<a id="__codelineno-60-57" name="__codelineno-60-57" href="#__codelineno-60-57"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="p">;</span>
|
|
|
<a id="__codelineno-60-58" name="__codelineno-60-58" href="#__codelineno-60-58"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-59" name="__codelineno-60-59" href="#__codelineno-60-59"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-60-60" name="__codelineno-60-60" href="#__codelineno-60-60"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-60-61" name="__codelineno-60-61" href="#__codelineno-60-61"></a><span class="w"> </span><span class="n">size</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-60-62" name="__codelineno-60-62" href="#__codelineno-60-62"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-63" name="__codelineno-60-63" href="#__codelineno-60-63"></a>
|
|
|
<a id="__codelineno-60-64" name="__codelineno-60-64" href="#__codelineno-60-64"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-60-65" name="__codelineno-60-65" href="#__codelineno-60-65"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
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<a id="__codelineno-60-66" name="__codelineno-60-66" href="#__codelineno-60-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">)</span>
|
|
|
<a id="__codelineno-60-67" name="__codelineno-60-67" href="#__codelineno-60-67"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="n">IndexOutOfBoundsException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-60-68" name="__codelineno-60-68" href="#__codelineno-60-68"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">index</span><span class="o">]</span><span class="p">;</span>
|
|
|
<a id="__codelineno-60-69" name="__codelineno-60-69" href="#__codelineno-60-69"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
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<a id="__codelineno-60-70" name="__codelineno-60-70" href="#__codelineno-60-70"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
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<a id="__codelineno-60-71" name="__codelineno-60-71" href="#__codelineno-60-71"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">j</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="o">]</span><span class="p">;</span>
|
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<a id="__codelineno-60-72" name="__codelineno-60-72" href="#__codelineno-60-72"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-73" name="__codelineno-60-73" href="#__codelineno-60-73"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-60-74" name="__codelineno-60-74" href="#__codelineno-60-74"></a><span class="w"> </span><span class="n">size</span><span class="o">--</span><span class="p">;</span>
|
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|
<a id="__codelineno-60-75" name="__codelineno-60-75" href="#__codelineno-60-75"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
|
|
<a id="__codelineno-60-76" name="__codelineno-60-76" href="#__codelineno-60-76"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
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<a id="__codelineno-60-77" name="__codelineno-60-77" href="#__codelineno-60-77"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-78" name="__codelineno-60-78" href="#__codelineno-60-78"></a>
|
|
|
<a id="__codelineno-60-79" name="__codelineno-60-79" href="#__codelineno-60-79"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
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<a id="__codelineno-60-80" name="__codelineno-60-80" href="#__codelineno-60-80"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-81" name="__codelineno-60-81" href="#__codelineno-60-81"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size 的数组，并将原数组拷贝到新数组</span>
|
|
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<a id="__codelineno-60-82" name="__codelineno-60-82" href="#__codelineno-60-82"></a><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">Arrays</span><span class="p">.</span><span class="na">copyOf</span><span class="p">(</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
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|
<a id="__codelineno-60-83" name="__codelineno-60-83" href="#__codelineno-60-83"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
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<a id="__codelineno-60-84" name="__codelineno-60-84" href="#__codelineno-60-84"></a><span class="w"> </span><span class="n">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="na">length</span><span class="p">;</span>
|
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<a id="__codelineno-60-85" name="__codelineno-60-85" href="#__codelineno-60-85"></a><span class="w"> </span><span class="p">}</span>
|
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<a id="__codelineno-60-86" name="__codelineno-60-86" href="#__codelineno-60-86"></a>
|
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<a id="__codelineno-60-87" name="__codelineno-60-87" href="#__codelineno-60-87"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
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<a id="__codelineno-60-88" name="__codelineno-60-88" href="#__codelineno-60-88"></a><span class="w"> </span><span class="kd">public</span><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="nf">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-60-89" name="__codelineno-60-89" href="#__codelineno-60-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">();</span>
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<a id="__codelineno-60-90" name="__codelineno-60-90" href="#__codelineno-60-90"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-60-91" name="__codelineno-60-91" href="#__codelineno-60-91"></a><span class="w"> </span><span class="kt">int</span><span class="o">[]</span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="o">[</span><span class="n">size</span><span class="o">]</span><span class="p">;</span>
|
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|
<a id="__codelineno-60-92" name="__codelineno-60-92" href="#__codelineno-60-92"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
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<a id="__codelineno-60-93" name="__codelineno-60-93" href="#__codelineno-60-93"></a><span class="w"> </span><span class="n">nums</span><span class="o">[</span><span class="n">i</span><span class="o">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
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<a id="__codelineno-60-94" name="__codelineno-60-94" href="#__codelineno-60-94"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-95" name="__codelineno-60-95" href="#__codelineno-60-95"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
|
|
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<a id="__codelineno-60-96" name="__codelineno-60-96" href="#__codelineno-60-96"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-60-97" name="__codelineno-60-97" href="#__codelineno-60-97"></a><span class="p">}</span>
|
|
|
</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.cpp</span><pre><span></span><code><a id="__codelineno-61-1" name="__codelineno-61-1" href="#__codelineno-61-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-61-2" name="__codelineno-61-2" href="#__codelineno-61-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-3" name="__codelineno-61-3" href="#__codelineno-61-3"></a><span class="k">private</span><span class="o">:</span>
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<a id="__codelineno-61-4" name="__codelineno-61-4" href="#__codelineno-61-4"></a><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-61-5" name="__codelineno-61-5" href="#__codelineno-61-5"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-61-6" name="__codelineno-61-6" href="#__codelineno-61-6"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">numsSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-61-7" name="__codelineno-61-7" href="#__codelineno-61-7"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-61-8" name="__codelineno-61-8" href="#__codelineno-61-8"></a>
|
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<a id="__codelineno-61-9" name="__codelineno-61-9" href="#__codelineno-61-9"></a><span class="k">public</span><span class="o">:</span>
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<a id="__codelineno-61-10" name="__codelineno-61-10" href="#__codelineno-61-10"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-61-11" name="__codelineno-61-11" href="#__codelineno-61-11"></a><span class="w"> </span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-12" name="__codelineno-61-12" href="#__codelineno-61-12"></a><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">numsCapacity</span><span class="p">];</span>
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<a id="__codelineno-61-13" name="__codelineno-61-13" href="#__codelineno-61-13"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-61-14" name="__codelineno-61-14" href="#__codelineno-61-14"></a>
|
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|
<a id="__codelineno-61-15" name="__codelineno-61-15" href="#__codelineno-61-15"></a><span class="w"> </span><span class="cm">/* 析构方法 */</span>
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<a id="__codelineno-61-16" name="__codelineno-61-16" href="#__codelineno-61-16"></a><span class="w"> </span><span class="o">~</span><span class="n">MyList</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-17" name="__codelineno-61-17" href="#__codelineno-61-17"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
|
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<a id="__codelineno-61-18" name="__codelineno-61-18" href="#__codelineno-61-18"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-19" name="__codelineno-61-19" href="#__codelineno-61-19"></a>
|
|
|
<a id="__codelineno-61-20" name="__codelineno-61-20" href="#__codelineno-61-20"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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|
|
<a id="__codelineno-61-21" name="__codelineno-61-21" href="#__codelineno-61-21"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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|
|
<a id="__codelineno-61-22" name="__codelineno-61-22" href="#__codelineno-61-22"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">numsSize</span><span class="p">;</span>
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|
|
<a id="__codelineno-61-23" name="__codelineno-61-23" href="#__codelineno-61-23"></a><span class="w"> </span><span class="p">}</span>
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|
|
<a id="__codelineno-61-24" name="__codelineno-61-24" href="#__codelineno-61-24"></a>
|
|
|
<a id="__codelineno-61-25" name="__codelineno-61-25" href="#__codelineno-61-25"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
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|
|
<a id="__codelineno-61-26" name="__codelineno-61-26" href="#__codelineno-61-26"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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|
|
<a id="__codelineno-61-27" name="__codelineno-61-27" href="#__codelineno-61-27"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">numsCapacity</span><span class="p">;</span>
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|
|
<a id="__codelineno-61-28" name="__codelineno-61-28" href="#__codelineno-61-28"></a><span class="w"> </span><span class="p">}</span>
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|
|
<a id="__codelineno-61-29" name="__codelineno-61-29" href="#__codelineno-61-29"></a>
|
|
|
<a id="__codelineno-61-30" name="__codelineno-61-30" href="#__codelineno-61-30"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
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|
<a id="__codelineno-61-31" name="__codelineno-61-31" href="#__codelineno-61-31"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-32" name="__codelineno-61-32" href="#__codelineno-61-32"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-61-33" name="__codelineno-61-33" href="#__codelineno-61-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
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|
<a id="__codelineno-61-34" name="__codelineno-61-34" href="#__codelineno-61-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-61-35" name="__codelineno-61-35" href="#__codelineno-61-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
|
|
<a id="__codelineno-61-36" name="__codelineno-61-36" href="#__codelineno-61-36"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-37" name="__codelineno-61-37" href="#__codelineno-61-37"></a>
|
|
|
<a id="__codelineno-61-38" name="__codelineno-61-38" href="#__codelineno-61-38"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
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|
|
<a id="__codelineno-61-39" name="__codelineno-61-39" href="#__codelineno-61-39"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-40" name="__codelineno-61-40" href="#__codelineno-61-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
|
|
<a id="__codelineno-61-41" name="__codelineno-61-41" href="#__codelineno-61-41"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-61-42" name="__codelineno-61-42" href="#__codelineno-61-42"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-61-43" name="__codelineno-61-43" href="#__codelineno-61-43"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-44" name="__codelineno-61-44" href="#__codelineno-61-44"></a>
|
|
|
<a id="__codelineno-61-45" name="__codelineno-61-45" href="#__codelineno-61-45"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
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|
<a id="__codelineno-61-46" name="__codelineno-61-46" href="#__codelineno-61-46"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-47" name="__codelineno-61-47" href="#__codelineno-61-47"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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|
|
<a id="__codelineno-61-48" name="__codelineno-61-48" href="#__codelineno-61-48"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
|
|
<a id="__codelineno-61-49" name="__codelineno-61-49" href="#__codelineno-61-49"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
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|
|
<a id="__codelineno-61-50" name="__codelineno-61-50" href="#__codelineno-61-50"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-61-51" name="__codelineno-61-51" href="#__codelineno-61-51"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-61-52" name="__codelineno-61-52" href="#__codelineno-61-52"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-61-53" name="__codelineno-61-53" href="#__codelineno-61-53"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-54" name="__codelineno-61-54" href="#__codelineno-61-54"></a>
|
|
|
<a id="__codelineno-61-55" name="__codelineno-61-55" href="#__codelineno-61-55"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
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|
<a id="__codelineno-61-56" name="__codelineno-61-56" href="#__codelineno-61-56"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-57" name="__codelineno-61-57" href="#__codelineno-61-57"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
|
|
|
<a id="__codelineno-61-58" name="__codelineno-61-58" href="#__codelineno-61-58"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-61-59" name="__codelineno-61-59" href="#__codelineno-61-59"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
|
|
<a id="__codelineno-61-60" name="__codelineno-61-60" href="#__codelineno-61-60"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">capacity</span><span class="p">())</span>
|
|
|
<a id="__codelineno-61-61" name="__codelineno-61-61" href="#__codelineno-61-61"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-61-62" name="__codelineno-61-62" href="#__codelineno-61-62"></a><span class="w"> </span><span class="c1">// 索引 i 以及之后的元素都向后移动一位</span>
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|
|
<a id="__codelineno-61-63" name="__codelineno-61-63" href="#__codelineno-61-63"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-64" name="__codelineno-61-64" href="#__codelineno-61-64"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
|
|
<a id="__codelineno-61-65" name="__codelineno-61-65" href="#__codelineno-61-65"></a><span class="w"> </span><span class="p">}</span>
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|
|
<a id="__codelineno-61-66" name="__codelineno-61-66" href="#__codelineno-61-66"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-61-67" name="__codelineno-61-67" href="#__codelineno-61-67"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-61-68" name="__codelineno-61-68" href="#__codelineno-61-68"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">++</span><span class="p">;</span>
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|
|
<a id="__codelineno-61-69" name="__codelineno-61-69" href="#__codelineno-61-69"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-70" name="__codelineno-61-70" href="#__codelineno-61-70"></a>
|
|
|
<a id="__codelineno-61-71" name="__codelineno-61-71" href="#__codelineno-61-71"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
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|
<a id="__codelineno-61-72" name="__codelineno-61-72" href="#__codelineno-61-72"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-73" name="__codelineno-61-73" href="#__codelineno-61-73"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">size</span><span class="p">())</span>
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|
<a id="__codelineno-61-74" name="__codelineno-61-74" href="#__codelineno-61-74"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="n">out_of_range</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-61-75" name="__codelineno-61-75" href="#__codelineno-61-75"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
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|
|
<a id="__codelineno-61-76" name="__codelineno-61-76" href="#__codelineno-61-76"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
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|
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<a id="__codelineno-61-77" name="__codelineno-61-77" href="#__codelineno-61-77"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-61-78" name="__codelineno-61-78" href="#__codelineno-61-78"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
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|
|
<a id="__codelineno-61-79" name="__codelineno-61-79" href="#__codelineno-61-79"></a><span class="w"> </span><span class="p">}</span>
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|
|
<a id="__codelineno-61-80" name="__codelineno-61-80" href="#__codelineno-61-80"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-61-81" name="__codelineno-61-81" href="#__codelineno-61-81"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">--</span><span class="p">;</span>
|
|
|
<a id="__codelineno-61-82" name="__codelineno-61-82" href="#__codelineno-61-82"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
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|
|
<a id="__codelineno-61-83" name="__codelineno-61-83" href="#__codelineno-61-83"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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|
|
<a id="__codelineno-61-84" name="__codelineno-61-84" href="#__codelineno-61-84"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-61-85" name="__codelineno-61-85" href="#__codelineno-61-85"></a>
|
|
|
<a id="__codelineno-61-86" name="__codelineno-61-86" href="#__codelineno-61-86"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
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|
|
<a id="__codelineno-61-87" name="__codelineno-61-87" href="#__codelineno-61-87"></a><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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|
|
<a id="__codelineno-61-88" name="__codelineno-61-88" href="#__codelineno-61-88"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size * extendRatio 的数组，并将原数组拷贝到新数组</span>
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|
|
<a id="__codelineno-61-89" name="__codelineno-61-89" href="#__codelineno-61-89"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">;</span>
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|
|
<a id="__codelineno-61-90" name="__codelineno-61-90" href="#__codelineno-61-90"></a><span class="w"> </span><span class="kt">int</span><span class="o">*</span><span class="w"> </span><span class="n">tmp</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
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|
<a id="__codelineno-61-91" name="__codelineno-61-91" href="#__codelineno-61-91"></a><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">newCapacity</span><span class="p">];</span>
|
|
|
<a id="__codelineno-61-92" name="__codelineno-61-92" href="#__codelineno-61-92"></a><span class="w"> </span><span class="c1">// 将原数组中的所有元素复制到新数组</span>
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<a id="__codelineno-61-93" name="__codelineno-61-93" href="#__codelineno-61-93"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-94" name="__codelineno-61-94" href="#__codelineno-61-94"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">tmp</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
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<a id="__codelineno-61-95" name="__codelineno-61-95" href="#__codelineno-61-95"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-61-96" name="__codelineno-61-96" href="#__codelineno-61-96"></a><span class="w"> </span><span class="c1">// 释放内存</span>
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<a id="__codelineno-61-97" name="__codelineno-61-97" href="#__codelineno-61-97"></a><span class="w"> </span><span class="k">delete</span><span class="p">[]</span><span class="w"> </span><span class="n">tmp</span><span class="p">;</span>
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<a id="__codelineno-61-98" name="__codelineno-61-98" href="#__codelineno-61-98"></a><span class="w"> </span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
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<a id="__codelineno-61-99" name="__codelineno-61-99" href="#__codelineno-61-99"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-61-100" name="__codelineno-61-100" href="#__codelineno-61-100"></a>
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<a id="__codelineno-61-101" name="__codelineno-61-101" href="#__codelineno-61-101"></a><span class="w"> </span><span class="cm">/* 将列表转换为 Vector 用于打印 */</span>
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<a id="__codelineno-61-102" name="__codelineno-61-102" href="#__codelineno-61-102"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">toVector</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-103" name="__codelineno-61-103" href="#__codelineno-61-103"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-61-104" name="__codelineno-61-104" href="#__codelineno-61-104"></a><span class="w"> </span><span class="n">vector</span><span class="o"><</span><span class="kt">int</span><span class="o">></span><span class="w"> </span><span class="n">vec</span><span class="p">(</span><span class="n">size</span><span class="p">());</span>
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<a id="__codelineno-61-105" name="__codelineno-61-105" href="#__codelineno-61-105"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">size</span><span class="p">();</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-61-106" name="__codelineno-61-106" href="#__codelineno-61-106"></a><span class="w"> </span><span class="n">vec</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">];</span>
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<a id="__codelineno-61-107" name="__codelineno-61-107" href="#__codelineno-61-107"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-61-108" name="__codelineno-61-108" href="#__codelineno-61-108"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">vec</span><span class="p">;</span>
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<a id="__codelineno-61-109" name="__codelineno-61-109" href="#__codelineno-61-109"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-61-110" name="__codelineno-61-110" href="#__codelineno-61-110"></a><span class="p">};</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.py</span><pre><span></span><code><a id="__codelineno-62-1" name="__codelineno-62-1" href="#__codelineno-62-1"></a><span class="sd">""" 列表类简易实现 """</span>
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<a id="__codelineno-62-2" name="__codelineno-62-2" href="#__codelineno-62-2"></a><span class="k">class</span> <span class="nc">MyList</span><span class="p">:</span>
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<a id="__codelineno-62-3" name="__codelineno-62-3" href="#__codelineno-62-3"></a><span class="w"> </span><span class="sd">""" 构造方法 """</span>
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<a id="__codelineno-62-4" name="__codelineno-62-4" href="#__codelineno-62-4"></a> <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<a id="__codelineno-62-5" name="__codelineno-62-5" href="#__codelineno-62-5"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="o">=</span> <span class="mi">10</span> <span class="c1"># 列表容量</span>
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<a id="__codelineno-62-6" name="__codelineno-62-6" href="#__codelineno-62-6"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">=</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="c1"># 数组（存储列表元素）</span>
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<a id="__codelineno-62-7" name="__codelineno-62-7" href="#__codelineno-62-7"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">=</span> <span class="mi">0</span> <span class="c1"># 列表长度（即当前元素数量）</span>
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<a id="__codelineno-62-8" name="__codelineno-62-8" href="#__codelineno-62-8"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__extend_ratio</span> <span class="o">=</span> <span class="mi">2</span> <span class="c1"># 每次列表扩容的倍数</span>
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<a id="__codelineno-62-9" name="__codelineno-62-9" href="#__codelineno-62-9"></a>
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<a id="__codelineno-62-10" name="__codelineno-62-10" href="#__codelineno-62-10"></a><span class="w"> </span><span class="sd">""" 获取列表长度（即当前元素数量） """</span>
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<a id="__codelineno-62-11" name="__codelineno-62-11" href="#__codelineno-62-11"></a> <span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<a id="__codelineno-62-12" name="__codelineno-62-12" href="#__codelineno-62-12"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span>
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<a id="__codelineno-62-13" name="__codelineno-62-13" href="#__codelineno-62-13"></a>
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<a id="__codelineno-62-14" name="__codelineno-62-14" href="#__codelineno-62-14"></a><span class="w"> </span><span class="sd">""" 获取列表容量 """</span>
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<a id="__codelineno-62-15" name="__codelineno-62-15" href="#__codelineno-62-15"></a> <span class="k">def</span> <span class="nf">capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<a id="__codelineno-62-16" name="__codelineno-62-16" href="#__codelineno-62-16"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span>
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<a id="__codelineno-62-17" name="__codelineno-62-17" href="#__codelineno-62-17"></a>
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<a id="__codelineno-62-18" name="__codelineno-62-18" href="#__codelineno-62-18"></a><span class="w"> </span><span class="sd">""" 访问元素 """</span>
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<a id="__codelineno-62-19" name="__codelineno-62-19" href="#__codelineno-62-19"></a> <span class="k">def</span> <span class="nf">get</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<a id="__codelineno-62-20" name="__codelineno-62-20" href="#__codelineno-62-20"></a> <span class="c1"># 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-62-21" name="__codelineno-62-21" href="#__codelineno-62-21"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
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<a id="__codelineno-62-22" name="__codelineno-62-22" href="#__codelineno-62-22"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
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<a id="__codelineno-62-23" name="__codelineno-62-23" href="#__codelineno-62-23"></a>
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<a id="__codelineno-62-24" name="__codelineno-62-24" href="#__codelineno-62-24"></a><span class="w"> </span><span class="sd">""" 更新元素 """</span>
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<a id="__codelineno-62-25" name="__codelineno-62-25" href="#__codelineno-62-25"></a> <span class="k">def</span> <span class="nf">set</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<a id="__codelineno-62-26" name="__codelineno-62-26" href="#__codelineno-62-26"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
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<a id="__codelineno-62-27" name="__codelineno-62-27" href="#__codelineno-62-27"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
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<a id="__codelineno-62-28" name="__codelineno-62-28" href="#__codelineno-62-28"></a>
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<a id="__codelineno-62-29" name="__codelineno-62-29" href="#__codelineno-62-29"></a><span class="w"> </span><span class="sd">""" 中间插入（尾部添加）元素 """</span>
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<a id="__codelineno-62-30" name="__codelineno-62-30" href="#__codelineno-62-30"></a> <span class="k">def</span> <span class="nf">add</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">num</span><span class="p">,</span> <span class="n">index</span><span class="o">=-</span><span class="mi">1</span><span class="p">):</span>
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<a id="__codelineno-62-31" name="__codelineno-62-31" href="#__codelineno-62-31"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
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<a id="__codelineno-62-32" name="__codelineno-62-32" href="#__codelineno-62-32"></a> <span class="c1"># 若不指定索引 index ，则向数组尾部添加元素</span>
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<a id="__codelineno-62-33" name="__codelineno-62-33" href="#__codelineno-62-33"></a> <span class="k">if</span> <span class="n">index</span> <span class="o">==</span> <span class="o">-</span><span class="mi">1</span><span class="p">:</span>
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<a id="__codelineno-62-34" name="__codelineno-62-34" href="#__codelineno-62-34"></a> <span class="n">index</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span>
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<a id="__codelineno-62-35" name="__codelineno-62-35" href="#__codelineno-62-35"></a> <span class="c1"># 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-62-36" name="__codelineno-62-36" href="#__codelineno-62-36"></a> <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">==</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">():</span>
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<a id="__codelineno-62-37" name="__codelineno-62-37" href="#__codelineno-62-37"></a> <span class="bp">self</span><span class="o">.</span><span class="n">extend_capacity</span><span class="p">()</span>
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<a id="__codelineno-62-38" name="__codelineno-62-38" href="#__codelineno-62-38"></a> <span class="c1"># 索引 i 以及之后的元素都向后移动一位</span>
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<a id="__codelineno-62-39" name="__codelineno-62-39" href="#__codelineno-62-39"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">index</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="o">-</span><span class="mi">1</span><span class="p">):</span>
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<a id="__codelineno-62-40" name="__codelineno-62-40" href="#__codelineno-62-40"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
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<a id="__codelineno-62-41" name="__codelineno-62-41" href="#__codelineno-62-41"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="o">=</span> <span class="n">num</span>
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<a id="__codelineno-62-42" name="__codelineno-62-42" href="#__codelineno-62-42"></a> <span class="c1"># 更新元素数量</span>
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<a id="__codelineno-62-43" name="__codelineno-62-43" href="#__codelineno-62-43"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">+=</span> <span class="mi">1</span>
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<a id="__codelineno-62-44" name="__codelineno-62-44" href="#__codelineno-62-44"></a>
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<a id="__codelineno-62-45" name="__codelineno-62-45" href="#__codelineno-62-45"></a><span class="w"> </span><span class="sd">""" 删除元素 """</span>
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<a id="__codelineno-62-46" name="__codelineno-62-46" href="#__codelineno-62-46"></a> <span class="k">def</span> <span class="nf">remove</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">index</span><span class="p">):</span>
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<a id="__codelineno-62-47" name="__codelineno-62-47" href="#__codelineno-62-47"></a> <span class="k">assert</span> <span class="n">index</span> <span class="o">>=</span> <span class="mi">0</span> <span class="ow">and</span> <span class="n">index</span> <span class="o"><</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">,</span> <span class="s2">"索引越界"</span>
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<a id="__codelineno-62-48" name="__codelineno-62-48" href="#__codelineno-62-48"></a> <span class="n">num</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
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<a id="__codelineno-62-49" name="__codelineno-62-49" href="#__codelineno-62-49"></a> <span class="c1"># 索引 i 之后的元素都向前移动一位</span>
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<a id="__codelineno-62-50" name="__codelineno-62-50" href="#__codelineno-62-50"></a> <span class="k">for</span> <span class="n">j</span> <span class="ow">in</span> <span class="nb">range</span><span class="p">(</span><span class="n">index</span><span class="p">,</span> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">):</span>
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<a id="__codelineno-62-51" name="__codelineno-62-51" href="#__codelineno-62-51"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
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<a id="__codelineno-62-52" name="__codelineno-62-52" href="#__codelineno-62-52"></a> <span class="c1"># 更新元素数量</span>
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<a id="__codelineno-62-53" name="__codelineno-62-53" href="#__codelineno-62-53"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__size</span> <span class="o">-=</span> <span class="mi">1</span>
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<a id="__codelineno-62-54" name="__codelineno-62-54" href="#__codelineno-62-54"></a> <span class="c1"># 返回被删除元素</span>
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<a id="__codelineno-62-55" name="__codelineno-62-55" href="#__codelineno-62-55"></a> <span class="k">return</span> <span class="n">num</span>
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<a id="__codelineno-62-56" name="__codelineno-62-56" href="#__codelineno-62-56"></a>
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<a id="__codelineno-62-57" name="__codelineno-62-57" href="#__codelineno-62-57"></a><span class="w"> </span><span class="sd">""" 列表扩容 """</span>
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<a id="__codelineno-62-58" name="__codelineno-62-58" href="#__codelineno-62-58"></a> <span class="k">def</span> <span class="nf">extend_capacity</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<a id="__codelineno-62-59" name="__codelineno-62-59" href="#__codelineno-62-59"></a> <span class="c1"># 新建一个长度为 self.__size 的数组，并将原数组拷贝到新数组</span>
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<a id="__codelineno-62-60" name="__codelineno-62-60" href="#__codelineno-62-60"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span> <span class="o">+</span> <span class="p">[</span><span class="mi">0</span><span class="p">]</span> <span class="o">*</span> <span class="bp">self</span><span class="o">.</span><span class="n">capacity</span><span class="p">()</span> <span class="o">*</span> <span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__extend_ratio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span>
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<a id="__codelineno-62-61" name="__codelineno-62-61" href="#__codelineno-62-61"></a> <span class="c1"># 更新列表容量</span>
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<a id="__codelineno-62-62" name="__codelineno-62-62" href="#__codelineno-62-62"></a> <span class="bp">self</span><span class="o">.</span><span class="n">__capacity</span> <span class="o">=</span> <span class="nb">len</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">)</span>
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<a id="__codelineno-62-63" name="__codelineno-62-63" href="#__codelineno-62-63"></a>
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<a id="__codelineno-62-64" name="__codelineno-62-64" href="#__codelineno-62-64"></a><span class="w"> </span><span class="sd">""" 返回有效长度的列表 """</span>
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<a id="__codelineno-62-65" name="__codelineno-62-65" href="#__codelineno-62-65"></a> <span class="k">def</span> <span class="nf">to_array</span><span class="p">(</span><span class="bp">self</span><span class="p">):</span>
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<a id="__codelineno-62-66" name="__codelineno-62-66" href="#__codelineno-62-66"></a> <span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">__nums</span><span class="p">[:</span><span class="bp">self</span><span class="o">.</span><span class="n">__size</span><span class="p">]</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.go</span><pre><span></span><code><a id="__codelineno-63-1" name="__codelineno-63-1" href="#__codelineno-63-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-63-2" name="__codelineno-63-2" href="#__codelineno-63-2"></a><span class="kd">type</span><span class="w"> </span><span class="nx">myList</span><span class="w"> </span><span class="kd">struct</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-3" name="__codelineno-63-3" href="#__codelineno-63-3"></a><span class="w"> </span><span class="nx">numsCapacity</span><span class="w"> </span><span class="kt">int</span>
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<a id="__codelineno-63-4" name="__codelineno-63-4" href="#__codelineno-63-4"></a><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span>
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<a id="__codelineno-63-5" name="__codelineno-63-5" href="#__codelineno-63-5"></a><span class="w"> </span><span class="nx">numsSize</span><span class="w"> </span><span class="kt">int</span>
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<a id="__codelineno-63-6" name="__codelineno-63-6" href="#__codelineno-63-6"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="w"> </span><span class="kt">int</span>
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<a id="__codelineno-63-7" name="__codelineno-63-7" href="#__codelineno-63-7"></a><span class="p">}</span>
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<a id="__codelineno-63-8" name="__codelineno-63-8" href="#__codelineno-63-8"></a>
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<a id="__codelineno-63-9" name="__codelineno-63-9" href="#__codelineno-63-9"></a><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-63-10" name="__codelineno-63-10" href="#__codelineno-63-10"></a><span class="kd">func</span><span class="w"> </span><span class="nx">newMyList</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-11" name="__codelineno-63-11" href="#__codelineno-63-11"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="o">&</span><span class="nx">myList</span><span class="p">{</span>
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<a id="__codelineno-63-12" name="__codelineno-63-12" href="#__codelineno-63-12"></a><span class="w"> </span><span class="nx">numsCapacity</span><span class="p">:</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-63-13" name="__codelineno-63-13" href="#__codelineno-63-13"></a><span class="w"> </span><span class="nx">nums</span><span class="p">:</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="mi">10</span><span class="p">),</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-63-14" name="__codelineno-63-14" href="#__codelineno-63-14"></a><span class="w"> </span><span class="nx">numsSize</span><span class="p">:</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-63-15" name="__codelineno-63-15" href="#__codelineno-63-15"></a><span class="w"> </span><span class="nx">extendRatio</span><span class="p">:</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-63-16" name="__codelineno-63-16" href="#__codelineno-63-16"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-17" name="__codelineno-63-17" href="#__codelineno-63-17"></a><span class="p">}</span>
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<a id="__codelineno-63-18" name="__codelineno-63-18" href="#__codelineno-63-18"></a>
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<a id="__codelineno-63-19" name="__codelineno-63-19" href="#__codelineno-63-19"></a><span class="cm">/* 获取列表长度（即当前元素数量） */</span>
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<a id="__codelineno-63-20" name="__codelineno-63-20" href="#__codelineno-63-20"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-21" name="__codelineno-63-21" href="#__codelineno-63-21"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span>
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<a id="__codelineno-63-22" name="__codelineno-63-22" href="#__codelineno-63-22"></a><span class="p">}</span>
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<a id="__codelineno-63-23" name="__codelineno-63-23" href="#__codelineno-63-23"></a>
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<a id="__codelineno-63-24" name="__codelineno-63-24" href="#__codelineno-63-24"></a><span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-63-25" name="__codelineno-63-25" href="#__codelineno-63-25"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-26" name="__codelineno-63-26" href="#__codelineno-63-26"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsCapacity</span>
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<a id="__codelineno-63-27" name="__codelineno-63-27" href="#__codelineno-63-27"></a><span class="p">}</span>
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<a id="__codelineno-63-28" name="__codelineno-63-28" href="#__codelineno-63-28"></a>
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<a id="__codelineno-63-29" name="__codelineno-63-29" href="#__codelineno-63-29"></a><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-63-30" name="__codelineno-63-30" href="#__codelineno-63-30"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-31" name="__codelineno-63-31" href="#__codelineno-63-31"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-63-32" name="__codelineno-63-32" href="#__codelineno-63-32"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-33" name="__codelineno-63-33" href="#__codelineno-63-33"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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<a id="__codelineno-63-34" name="__codelineno-63-34" href="#__codelineno-63-34"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-35" name="__codelineno-63-35" href="#__codelineno-63-35"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
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<a id="__codelineno-63-36" name="__codelineno-63-36" href="#__codelineno-63-36"></a><span class="p">}</span>
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<a id="__codelineno-63-37" name="__codelineno-63-37" href="#__codelineno-63-37"></a>
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<a id="__codelineno-63-38" name="__codelineno-63-38" href="#__codelineno-63-38"></a><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-63-39" name="__codelineno-63-39" href="#__codelineno-63-39"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-40" name="__codelineno-63-40" href="#__codelineno-63-40"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-41" name="__codelineno-63-41" href="#__codelineno-63-41"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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<a id="__codelineno-63-42" name="__codelineno-63-42" href="#__codelineno-63-42"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-43" name="__codelineno-63-43" href="#__codelineno-63-43"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
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<a id="__codelineno-63-44" name="__codelineno-63-44" href="#__codelineno-63-44"></a><span class="p">}</span>
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<a id="__codelineno-63-45" name="__codelineno-63-45" href="#__codelineno-63-45"></a>
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<a id="__codelineno-63-46" name="__codelineno-63-46" href="#__codelineno-63-46"></a><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-63-47" name="__codelineno-63-47" href="#__codelineno-63-47"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-48" name="__codelineno-63-48" href="#__codelineno-63-48"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-63-49" name="__codelineno-63-49" href="#__codelineno-63-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsCapacity</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-50" name="__codelineno-63-50" href="#__codelineno-63-50"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
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<a id="__codelineno-63-51" name="__codelineno-63-51" href="#__codelineno-63-51"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-52" name="__codelineno-63-52" href="#__codelineno-63-52"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
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<a id="__codelineno-63-53" name="__codelineno-63-53" href="#__codelineno-63-53"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-63-54" name="__codelineno-63-54" href="#__codelineno-63-54"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="o">++</span>
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<a id="__codelineno-63-55" name="__codelineno-63-55" href="#__codelineno-63-55"></a><span class="p">}</span>
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<a id="__codelineno-63-56" name="__codelineno-63-56" href="#__codelineno-63-56"></a>
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<a id="__codelineno-63-57" name="__codelineno-63-57" href="#__codelineno-63-57"></a><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-63-58" name="__codelineno-63-58" href="#__codelineno-63-58"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">num</span><span class="p">,</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-59" name="__codelineno-63-59" href="#__codelineno-63-59"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-60" name="__codelineno-63-60" href="#__codelineno-63-60"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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<a id="__codelineno-63-61" name="__codelineno-63-61" href="#__codelineno-63-61"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-62" name="__codelineno-63-62" href="#__codelineno-63-62"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-63-63" name="__codelineno-63-63" href="#__codelineno-63-63"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsCapacity</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-64" name="__codelineno-63-64" href="#__codelineno-63-64"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">()</span>
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<a id="__codelineno-63-65" name="__codelineno-63-65" href="#__codelineno-63-65"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-66" name="__codelineno-63-66" href="#__codelineno-63-66"></a><span class="w"> </span><span class="c1">// 索引 i 以及之后的元素都向后移动一位</span>
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<a id="__codelineno-63-67" name="__codelineno-63-67" href="#__codelineno-63-67"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="w"> </span><span class="p">{</span>
|
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<a id="__codelineno-63-68" name="__codelineno-63-68" href="#__codelineno-63-68"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span>
|
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<a id="__codelineno-63-69" name="__codelineno-63-69" href="#__codelineno-63-69"></a><span class="w"> </span><span class="p">}</span>
|
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<a id="__codelineno-63-70" name="__codelineno-63-70" href="#__codelineno-63-70"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">num</span>
|
|
|
<a id="__codelineno-63-71" name="__codelineno-63-71" href="#__codelineno-63-71"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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|
|
<a id="__codelineno-63-72" name="__codelineno-63-72" href="#__codelineno-63-72"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="o">++</span>
|
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<a id="__codelineno-63-73" name="__codelineno-63-73" href="#__codelineno-63-73"></a><span class="p">}</span>
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<a id="__codelineno-63-74" name="__codelineno-63-74" href="#__codelineno-63-74"></a>
|
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<a id="__codelineno-63-75" name="__codelineno-63-75" href="#__codelineno-63-75"></a><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-63-76" name="__codelineno-63-76" href="#__codelineno-63-76"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="kt">int</span><span class="p">)</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-77" name="__codelineno-63-77" href="#__codelineno-63-77"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-78" name="__codelineno-63-78" href="#__codelineno-63-78"></a><span class="w"> </span><span class="nb">panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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<a id="__codelineno-63-79" name="__codelineno-63-79" href="#__codelineno-63-79"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-80" name="__codelineno-63-80" href="#__codelineno-63-80"></a><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span>
|
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<a id="__codelineno-63-81" name="__codelineno-63-81" href="#__codelineno-63-81"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
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<a id="__codelineno-63-82" name="__codelineno-63-82" href="#__codelineno-63-82"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">:=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="p"><</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="o">-</span><span class="mi">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-83" name="__codelineno-63-83" href="#__codelineno-63-83"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="o">+</span><span class="mi">1</span><span class="p">]</span>
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<a id="__codelineno-63-84" name="__codelineno-63-84" href="#__codelineno-63-84"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-63-85" name="__codelineno-63-85" href="#__codelineno-63-85"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
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<a id="__codelineno-63-86" name="__codelineno-63-86" href="#__codelineno-63-86"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="o">--</span>
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<a id="__codelineno-63-87" name="__codelineno-63-87" href="#__codelineno-63-87"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
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<a id="__codelineno-63-88" name="__codelineno-63-88" href="#__codelineno-63-88"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span>
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<a id="__codelineno-63-89" name="__codelineno-63-89" href="#__codelineno-63-89"></a><span class="p">}</span>
|
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<a id="__codelineno-63-90" name="__codelineno-63-90" href="#__codelineno-63-90"></a>
|
|
|
<a id="__codelineno-63-91" name="__codelineno-63-91" href="#__codelineno-63-91"></a><span class="cm">/* 列表扩容 */</span>
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<a id="__codelineno-63-92" name="__codelineno-63-92" href="#__codelineno-63-92"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-93" name="__codelineno-63-93" href="#__codelineno-63-93"></a><span class="w"> </span><span class="c1">// 新建一个长度为 self.__size 的数组，并将原数组拷贝到新数组</span>
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<a id="__codelineno-63-94" name="__codelineno-63-94" href="#__codelineno-63-94"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">append</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">,</span><span class="w"> </span><span class="nb">make</span><span class="p">([]</span><span class="kt">int</span><span class="p">,</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsCapacity</span><span class="o">*</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">extendRatio</span><span class="o">-</span><span class="mi">1</span><span class="p">))</span><span class="o">...</span><span class="p">)</span>
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<a id="__codelineno-63-95" name="__codelineno-63-95" href="#__codelineno-63-95"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
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<a id="__codelineno-63-96" name="__codelineno-63-96" href="#__codelineno-63-96"></a><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">numsCapacity</span><span class="w"> </span><span class="p">=</span><span class="w"> </span><span class="nb">len</span><span class="p">(</span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">)</span>
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<a id="__codelineno-63-97" name="__codelineno-63-97" href="#__codelineno-63-97"></a><span class="p">}</span>
|
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<a id="__codelineno-63-98" name="__codelineno-63-98" href="#__codelineno-63-98"></a>
|
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<a id="__codelineno-63-99" name="__codelineno-63-99" href="#__codelineno-63-99"></a><span class="cm">/* 返回有效长度的列表 */</span>
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<a id="__codelineno-63-100" name="__codelineno-63-100" href="#__codelineno-63-100"></a><span class="kd">func</span><span class="w"> </span><span class="p">(</span><span class="nx">l</span><span class="w"> </span><span class="o">*</span><span class="nx">myList</span><span class="p">)</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">[]</span><span class="kt">int</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-63-101" name="__codelineno-63-101" href="#__codelineno-63-101"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-63-102" name="__codelineno-63-102" href="#__codelineno-63-102"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">l</span><span class="p">.</span><span class="nx">nums</span><span class="p">[:</span><span class="nx">l</span><span class="p">.</span><span class="nx">numsSize</span><span class="p">]</span>
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<a id="__codelineno-63-103" name="__codelineno-63-103" href="#__codelineno-63-103"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.js</span><pre><span></span><code><a id="__codelineno-64-1" name="__codelineno-64-1" href="#__codelineno-64-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-64-2" name="__codelineno-64-2" href="#__codelineno-64-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-64-3" name="__codelineno-64-3" href="#__codelineno-64-3"></a><span class="w"> </span><span class="err">#</span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">();</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-64-4" name="__codelineno-64-4" href="#__codelineno-64-4"></a><span class="w"> </span><span class="err">#</span><span class="nx">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-64-5" name="__codelineno-64-5" href="#__codelineno-64-5"></a><span class="w"> </span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-64-6" name="__codelineno-64-6" href="#__codelineno-64-6"></a><span class="w"> </span><span class="err">#</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-64-7" name="__codelineno-64-7" href="#__codelineno-64-7"></a>
|
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<a id="__codelineno-64-8" name="__codelineno-64-8" href="#__codelineno-64-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-64-9" name="__codelineno-64-9" href="#__codelineno-64-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-64-10" name="__codelineno-64-10" href="#__codelineno-64-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">);</span>
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<a id="__codelineno-64-11" name="__codelineno-64-11" href="#__codelineno-64-11"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-64-12" name="__codelineno-64-12" href="#__codelineno-64-12"></a>
|
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<a id="__codelineno-64-13" name="__codelineno-64-13" href="#__codelineno-64-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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<a id="__codelineno-64-14" name="__codelineno-64-14" href="#__codelineno-64-14"></a><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-64-15" name="__codelineno-64-15" href="#__codelineno-64-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">;</span>
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<a id="__codelineno-64-16" name="__codelineno-64-16" href="#__codelineno-64-16"></a><span class="w"> </span><span class="p">}</span>
|
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<a id="__codelineno-64-17" name="__codelineno-64-17" href="#__codelineno-64-17"></a>
|
|
|
<a id="__codelineno-64-18" name="__codelineno-64-18" href="#__codelineno-64-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-64-19" name="__codelineno-64-19" href="#__codelineno-64-19"></a><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-64-20" name="__codelineno-64-20" href="#__codelineno-64-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">;</span>
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<a id="__codelineno-64-21" name="__codelineno-64-21" href="#__codelineno-64-21"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-64-22" name="__codelineno-64-22" href="#__codelineno-64-22"></a>
|
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|
<a id="__codelineno-64-23" name="__codelineno-64-23" href="#__codelineno-64-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
|
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<a id="__codelineno-64-24" name="__codelineno-64-24" href="#__codelineno-64-24"></a><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-25" name="__codelineno-64-25" href="#__codelineno-64-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-64-26" name="__codelineno-64-26" href="#__codelineno-64-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span>
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<a id="__codelineno-64-27" name="__codelineno-64-27" href="#__codelineno-64-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
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|
<a id="__codelineno-64-28" name="__codelineno-64-28" href="#__codelineno-64-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
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<a id="__codelineno-64-29" name="__codelineno-64-29" href="#__codelineno-64-29"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-64-30" name="__codelineno-64-30" href="#__codelineno-64-30"></a>
|
|
|
<a id="__codelineno-64-31" name="__codelineno-64-31" href="#__codelineno-64-31"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
|
|
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<a id="__codelineno-64-32" name="__codelineno-64-32" href="#__codelineno-64-32"></a><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-33" name="__codelineno-64-33" href="#__codelineno-64-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span>
|
|
|
<a id="__codelineno-64-34" name="__codelineno-64-34" href="#__codelineno-64-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-35" name="__codelineno-64-35" href="#__codelineno-64-35"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-36" name="__codelineno-64-36" href="#__codelineno-64-36"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-37" name="__codelineno-64-37" href="#__codelineno-64-37"></a>
|
|
|
<a id="__codelineno-64-38" name="__codelineno-64-38" href="#__codelineno-64-38"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
|
|
|
<a id="__codelineno-64-39" name="__codelineno-64-39" href="#__codelineno-64-39"></a><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-40" name="__codelineno-64-40" href="#__codelineno-64-40"></a><span class="w"> </span><span class="c1">// 如果长度等于容量，则需要扩容</span>
|
|
|
<a id="__codelineno-64-41" name="__codelineno-64-41" href="#__codelineno-64-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-42" name="__codelineno-64-42" href="#__codelineno-64-42"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-64-43" name="__codelineno-64-43" href="#__codelineno-64-43"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-44" name="__codelineno-64-44" href="#__codelineno-64-44"></a><span class="w"> </span><span class="c1">// 将新元素添加到列表尾部</span>
|
|
|
<a id="__codelineno-64-45" name="__codelineno-64-45" href="#__codelineno-64-45"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-46" name="__codelineno-64-46" href="#__codelineno-64-46"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-47" name="__codelineno-64-47" href="#__codelineno-64-47"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-48" name="__codelineno-64-48" href="#__codelineno-64-48"></a>
|
|
|
<a id="__codelineno-64-49" name="__codelineno-64-49" href="#__codelineno-64-49"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
|
|
|
<a id="__codelineno-64-50" name="__codelineno-64-50" href="#__codelineno-64-50"></a><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-51" name="__codelineno-64-51" href="#__codelineno-64-51"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span>
|
|
|
<a id="__codelineno-64-52" name="__codelineno-64-52" href="#__codelineno-64-52"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-53" name="__codelineno-64-53" href="#__codelineno-64-53"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
|
|
<a id="__codelineno-64-54" name="__codelineno-64-54" href="#__codelineno-64-54"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-55" name="__codelineno-64-55" href="#__codelineno-64-55"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-64-56" name="__codelineno-64-56" href="#__codelineno-64-56"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-57" name="__codelineno-64-57" href="#__codelineno-64-57"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
|
|
<a id="__codelineno-64-58" name="__codelineno-64-58" href="#__codelineno-64-58"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-59" name="__codelineno-64-59" href="#__codelineno-64-59"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
|
|
|
<a id="__codelineno-64-60" name="__codelineno-64-60" href="#__codelineno-64-60"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-61" name="__codelineno-64-61" href="#__codelineno-64-61"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-64-62" name="__codelineno-64-62" href="#__codelineno-64-62"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-63" name="__codelineno-64-63" href="#__codelineno-64-63"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-64" name="__codelineno-64-64" href="#__codelineno-64-64"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-65" name="__codelineno-64-65" href="#__codelineno-64-65"></a>
|
|
|
<a id="__codelineno-64-66" name="__codelineno-64-66" href="#__codelineno-64-66"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
|
|
<a id="__codelineno-64-67" name="__codelineno-64-67" href="#__codelineno-64-67"></a><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-68" name="__codelineno-64-68" href="#__codelineno-64-68"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="p">)</span>
|
|
|
<a id="__codelineno-64-69" name="__codelineno-64-69" href="#__codelineno-64-69"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-70" name="__codelineno-64-70" href="#__codelineno-64-70"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
|
|
<a id="__codelineno-64-71" name="__codelineno-64-71" href="#__codelineno-64-71"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
|
|
<a id="__codelineno-64-72" name="__codelineno-64-72" href="#__codelineno-64-72"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-73" name="__codelineno-64-73" href="#__codelineno-64-73"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
|
|
|
<a id="__codelineno-64-74" name="__codelineno-64-74" href="#__codelineno-64-74"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-75" name="__codelineno-64-75" href="#__codelineno-64-75"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-64-76" name="__codelineno-64-76" href="#__codelineno-64-76"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">size</span><span class="o">--</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-77" name="__codelineno-64-77" href="#__codelineno-64-77"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
|
|
<a id="__codelineno-64-78" name="__codelineno-64-78" href="#__codelineno-64-78"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-79" name="__codelineno-64-79" href="#__codelineno-64-79"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-80" name="__codelineno-64-80" href="#__codelineno-64-80"></a>
|
|
|
<a id="__codelineno-64-81" name="__codelineno-64-81" href="#__codelineno-64-81"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
|
|
<a id="__codelineno-64-82" name="__codelineno-64-82" href="#__codelineno-64-82"></a><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-83" name="__codelineno-64-83" href="#__codelineno-64-83"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size 的数组，并将原数组拷贝到新数组</span>
|
|
|
<a id="__codelineno-64-84" name="__codelineno-64-84" href="#__codelineno-64-84"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
|
|
|
<a id="__codelineno-64-85" name="__codelineno-64-85" href="#__codelineno-64-85"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
|
|
|
<a id="__codelineno-64-86" name="__codelineno-64-86" href="#__codelineno-64-86"></a><span class="w"> </span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-87" name="__codelineno-64-87" href="#__codelineno-64-87"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
|
|
<a id="__codelineno-64-88" name="__codelineno-64-88" href="#__codelineno-64-88"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="err">#</span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-89" name="__codelineno-64-89" href="#__codelineno-64-89"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-90" name="__codelineno-64-90" href="#__codelineno-64-90"></a>
|
|
|
<a id="__codelineno-64-91" name="__codelineno-64-91" href="#__codelineno-64-91"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
|
|
|
<a id="__codelineno-64-92" name="__codelineno-64-92" href="#__codelineno-64-92"></a><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-93" name="__codelineno-64-93" href="#__codelineno-64-93"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
|
|
|
<a id="__codelineno-64-94" name="__codelineno-64-94" href="#__codelineno-64-94"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
|
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|
<a id="__codelineno-64-95" name="__codelineno-64-95" href="#__codelineno-64-95"></a><span class="w"> </span><span class="kd">const</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-96" name="__codelineno-64-96" href="#__codelineno-64-96"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-64-97" name="__codelineno-64-97" href="#__codelineno-64-97"></a><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
|
|
|
<a id="__codelineno-64-98" name="__codelineno-64-98" href="#__codelineno-64-98"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-99" name="__codelineno-64-99" href="#__codelineno-64-99"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">nums</span><span class="p">;</span>
|
|
|
<a id="__codelineno-64-100" name="__codelineno-64-100" href="#__codelineno-64-100"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-64-101" name="__codelineno-64-101" href="#__codelineno-64-101"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
|
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<div class="tabbed-block">
|
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<div class="highlight"><span class="filename">my_list.ts</span><pre><span></span><code><a id="__codelineno-65-1" name="__codelineno-65-1" href="#__codelineno-65-1"></a><span class="cm">/* 列表类简易实现 */</span>
|
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<a id="__codelineno-65-2" name="__codelineno-65-2" href="#__codelineno-65-2"></a><span class="kd">class</span><span class="w"> </span><span class="nx">MyList</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-3" name="__codelineno-65-3" href="#__codelineno-65-3"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">nums</span><span class="o">:</span><span class="w"> </span><span class="kt">Array</span><span class="o"><</span><span class="kt">number</span><span class="o">></span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-65-4" name="__codelineno-65-4" href="#__codelineno-65-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_capacity</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-65-5" name="__codelineno-65-5" href="#__codelineno-65-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">_size</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-65-6" name="__codelineno-65-6" href="#__codelineno-65-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="nx">extendRatio</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-65-7" name="__codelineno-65-7" href="#__codelineno-65-7"></a>
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<a id="__codelineno-65-8" name="__codelineno-65-8" href="#__codelineno-65-8"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-65-9" name="__codelineno-65-9" href="#__codelineno-65-9"></a><span class="w"> </span><span class="kr">constructor</span><span class="p">()</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-10" name="__codelineno-65-10" href="#__codelineno-65-10"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">);</span>
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<a id="__codelineno-65-11" name="__codelineno-65-11" href="#__codelineno-65-11"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-12" name="__codelineno-65-12" href="#__codelineno-65-12"></a>
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<a id="__codelineno-65-13" name="__codelineno-65-13" href="#__codelineno-65-13"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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<a id="__codelineno-65-14" name="__codelineno-65-14" href="#__codelineno-65-14"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">size</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-15" name="__codelineno-65-15" href="#__codelineno-65-15"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">;</span>
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<a id="__codelineno-65-16" name="__codelineno-65-16" href="#__codelineno-65-16"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-17" name="__codelineno-65-17" href="#__codelineno-65-17"></a>
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<a id="__codelineno-65-18" name="__codelineno-65-18" href="#__codelineno-65-18"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-65-19" name="__codelineno-65-19" href="#__codelineno-65-19"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">capacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-20" name="__codelineno-65-20" href="#__codelineno-65-20"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">;</span>
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<a id="__codelineno-65-21" name="__codelineno-65-21" href="#__codelineno-65-21"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-22" name="__codelineno-65-22" href="#__codelineno-65-22"></a>
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<a id="__codelineno-65-23" name="__codelineno-65-23" href="#__codelineno-65-23"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-65-24" name="__codelineno-65-24" href="#__codelineno-65-24"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">get</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-25" name="__codelineno-65-25" href="#__codelineno-65-25"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-65-26" name="__codelineno-65-26" href="#__codelineno-65-26"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span>
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<a id="__codelineno-65-27" name="__codelineno-65-27" href="#__codelineno-65-27"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
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<a id="__codelineno-65-28" name="__codelineno-65-28" href="#__codelineno-65-28"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
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<a id="__codelineno-65-29" name="__codelineno-65-29" href="#__codelineno-65-29"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-30" name="__codelineno-65-30" href="#__codelineno-65-30"></a>
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<a id="__codelineno-65-31" name="__codelineno-65-31" href="#__codelineno-65-31"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-65-32" name="__codelineno-65-32" href="#__codelineno-65-32"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">set</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-33" name="__codelineno-65-33" href="#__codelineno-65-33"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span>
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<a id="__codelineno-65-34" name="__codelineno-65-34" href="#__codelineno-65-34"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
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<a id="__codelineno-65-35" name="__codelineno-65-35" href="#__codelineno-65-35"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
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<a id="__codelineno-65-36" name="__codelineno-65-36" href="#__codelineno-65-36"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-37" name="__codelineno-65-37" href="#__codelineno-65-37"></a>
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<a id="__codelineno-65-38" name="__codelineno-65-38" href="#__codelineno-65-38"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-65-39" name="__codelineno-65-39" href="#__codelineno-65-39"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">add</span><span class="p">(</span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-40" name="__codelineno-65-40" href="#__codelineno-65-40"></a><span class="w"> </span><span class="c1">// 如果长度等于容量，则需要扩容</span>
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<a id="__codelineno-65-41" name="__codelineno-65-41" href="#__codelineno-65-41"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span>
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<a id="__codelineno-65-42" name="__codelineno-65-42" href="#__codelineno-65-42"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
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<a id="__codelineno-65-43" name="__codelineno-65-43" href="#__codelineno-65-43"></a><span class="w"> </span><span class="c1">// 将新元素添加到列表尾部</span>
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<a id="__codelineno-65-44" name="__codelineno-65-44" href="#__codelineno-65-44"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
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<a id="__codelineno-65-45" name="__codelineno-65-45" href="#__codelineno-65-45"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
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<a id="__codelineno-65-46" name="__codelineno-65-46" href="#__codelineno-65-46"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-47" name="__codelineno-65-47" href="#__codelineno-65-47"></a>
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<a id="__codelineno-65-48" name="__codelineno-65-48" href="#__codelineno-65-48"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-65-49" name="__codelineno-65-49" href="#__codelineno-65-49"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">insert</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">,</span><span class="w"> </span><span class="nx">num</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-50" name="__codelineno-65-50" href="#__codelineno-65-50"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span>
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<a id="__codelineno-65-51" name="__codelineno-65-51" href="#__codelineno-65-51"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
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<a id="__codelineno-65-52" name="__codelineno-65-52" href="#__codelineno-65-52"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-65-53" name="__codelineno-65-53" href="#__codelineno-65-53"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">===</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-54" name="__codelineno-65-54" href="#__codelineno-65-54"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">extendCapacity</span><span class="p">();</span>
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<a id="__codelineno-65-55" name="__codelineno-65-55" href="#__codelineno-65-55"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-56" name="__codelineno-65-56" href="#__codelineno-65-56"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
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<a id="__codelineno-65-57" name="__codelineno-65-57" href="#__codelineno-65-57"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">--</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-58" name="__codelineno-65-58" href="#__codelineno-65-58"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">];</span>
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<a id="__codelineno-65-59" name="__codelineno-65-59" href="#__codelineno-65-59"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-60" name="__codelineno-65-60" href="#__codelineno-65-60"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-65-61" name="__codelineno-65-61" href="#__codelineno-65-61"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
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<a id="__codelineno-65-62" name="__codelineno-65-62" href="#__codelineno-65-62"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">++</span><span class="p">;</span>
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<a id="__codelineno-65-63" name="__codelineno-65-63" href="#__codelineno-65-63"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-64" name="__codelineno-65-64" href="#__codelineno-65-64"></a>
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<a id="__codelineno-65-65" name="__codelineno-65-65" href="#__codelineno-65-65"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
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<a id="__codelineno-65-66" name="__codelineno-65-66" href="#__codelineno-65-66"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">remove</span><span class="p">(</span><span class="nx">index</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">)</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-67" name="__codelineno-65-67" href="#__codelineno-65-67"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="nx">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mf">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="nx">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="p">)</span>
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<a id="__codelineno-65-68" name="__codelineno-65-68" href="#__codelineno-65-68"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="ne">Error</span><span class="p">(</span><span class="s1">'索引越界'</span><span class="p">);</span>
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<a id="__codelineno-65-69" name="__codelineno-65-69" href="#__codelineno-65-69"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">index</span><span class="p">];</span>
|
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|
<a id="__codelineno-65-70" name="__codelineno-65-70" href="#__codelineno-65-70"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
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<a id="__codelineno-65-71" name="__codelineno-65-71" href="#__codelineno-65-71"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nx">index</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">;</span><span class="w"> </span><span class="nx">j</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-72" name="__codelineno-65-72" href="#__codelineno-65-72"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">[</span><span class="nx">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mf">1</span><span class="p">];</span>
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<a id="__codelineno-65-73" name="__codelineno-65-73" href="#__codelineno-65-73"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-74" name="__codelineno-65-74" href="#__codelineno-65-74"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-65-75" name="__codelineno-65-75" href="#__codelineno-65-75"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_size</span><span class="o">--</span><span class="p">;</span>
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<a id="__codelineno-65-76" name="__codelineno-65-76" href="#__codelineno-65-76"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
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<a id="__codelineno-65-77" name="__codelineno-65-77" href="#__codelineno-65-77"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">num</span><span class="p">;</span>
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<a id="__codelineno-65-78" name="__codelineno-65-78" href="#__codelineno-65-78"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-79" name="__codelineno-65-79" href="#__codelineno-65-79"></a>
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<a id="__codelineno-65-80" name="__codelineno-65-80" href="#__codelineno-65-80"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
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<a id="__codelineno-65-81" name="__codelineno-65-81" href="#__codelineno-65-81"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">extendCapacity</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="ow">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-82" name="__codelineno-65-82" href="#__codelineno-65-82"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size 的数组，并将原数组拷贝到新数组</span>
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<a id="__codelineno-65-83" name="__codelineno-65-83" href="#__codelineno-65-83"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">.</span><span class="nx">concat</span><span class="p">(</span>
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<a id="__codelineno-65-84" name="__codelineno-65-84" href="#__codelineno-65-84"></a><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="p">(</span><span class="k">this</span><span class="p">.</span><span class="nx">extendRatio</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mf">1</span><span class="p">))</span>
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<a id="__codelineno-65-85" name="__codelineno-65-85" href="#__codelineno-65-85"></a><span class="w"> </span><span class="p">);</span>
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<a id="__codelineno-65-86" name="__codelineno-65-86" href="#__codelineno-65-86"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
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<a id="__codelineno-65-87" name="__codelineno-65-87" href="#__codelineno-65-87"></a><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">_capacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">nums</span><span class="p">.</span><span class="nx">length</span><span class="p">;</span>
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<a id="__codelineno-65-88" name="__codelineno-65-88" href="#__codelineno-65-88"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-89" name="__codelineno-65-89" href="#__codelineno-65-89"></a>
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<a id="__codelineno-65-90" name="__codelineno-65-90" href="#__codelineno-65-90"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
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<a id="__codelineno-65-91" name="__codelineno-65-91" href="#__codelineno-65-91"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nx">toArray</span><span class="p">()</span><span class="o">:</span><span class="w"> </span><span class="kt">number</span><span class="p">[]</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-92" name="__codelineno-65-92" href="#__codelineno-65-92"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">size</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">size</span><span class="p">();</span>
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<a id="__codelineno-65-93" name="__codelineno-65-93" href="#__codelineno-65-93"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-65-94" name="__codelineno-65-94" href="#__codelineno-65-94"></a><span class="w"> </span><span class="kd">let</span><span class="w"> </span><span class="nx">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="ow">new</span><span class="w"> </span><span class="nb">Array</span><span class="p">(</span><span class="nx">size</span><span class="p">);</span>
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<a id="__codelineno-65-95" name="__codelineno-65-95" href="#__codelineno-65-95"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kd">let</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mf">0</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="nx">size</span><span class="p">;</span><span class="w"> </span><span class="nx">i</span><span class="o">++</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-65-96" name="__codelineno-65-96" href="#__codelineno-65-96"></a><span class="w"> </span><span class="nx">nums</span><span class="p">[</span><span class="nx">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">this</span><span class="p">.</span><span class="nx">get</span><span class="p">(</span><span class="nx">i</span><span class="p">);</span>
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<a id="__codelineno-65-97" name="__codelineno-65-97" href="#__codelineno-65-97"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-98" name="__codelineno-65-98" href="#__codelineno-65-98"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="nx">nums</span><span class="p">;</span>
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<a id="__codelineno-65-99" name="__codelineno-65-99" href="#__codelineno-65-99"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-65-100" name="__codelineno-65-100" href="#__codelineno-65-100"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.c</span><pre><span></span><code><a id="__codelineno-66-1" name="__codelineno-66-1" href="#__codelineno-66-1"></a><span class="p">[</span><span class="n">class</span><span class="p">]{</span><span class="n">myList</span><span class="p">}</span><span class="o">-</span><span class="p">[</span><span class="n">func</span><span class="p">]{}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.cs</span><pre><span></span><code><a id="__codelineno-67-1" name="__codelineno-67-1" href="#__codelineno-67-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-67-2" name="__codelineno-67-2" href="#__codelineno-67-2"></a><span class="k">class</span><span class="w"> </span><span class="nc">MyList</span>
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<a id="__codelineno-67-3" name="__codelineno-67-3" href="#__codelineno-67-3"></a><span class="p">{</span>
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<a id="__codelineno-67-4" name="__codelineno-67-4" href="#__codelineno-67-4"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-67-5" name="__codelineno-67-5" href="#__codelineno-67-5"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">10</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-67-6" name="__codelineno-67-6" href="#__codelineno-67-6"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">numsSize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-67-7" name="__codelineno-67-7" href="#__codelineno-67-7"></a><span class="w"> </span><span class="k">private</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">extendRatio</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">2</span><span class="p">;</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-67-8" name="__codelineno-67-8" href="#__codelineno-67-8"></a>
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<a id="__codelineno-67-9" name="__codelineno-67-9" href="#__codelineno-67-9"></a><span class="w"> </span><span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-67-10" name="__codelineno-67-10" href="#__codelineno-67-10"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="nf">MyList</span><span class="p">()</span>
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<a id="__codelineno-67-11" name="__codelineno-67-11" href="#__codelineno-67-11"></a><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-67-12" name="__codelineno-67-12" href="#__codelineno-67-12"></a><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">numsCapacity</span><span class="p">];</span>
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<a id="__codelineno-67-13" name="__codelineno-67-13" href="#__codelineno-67-13"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-67-14" name="__codelineno-67-14" href="#__codelineno-67-14"></a>
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<a id="__codelineno-67-15" name="__codelineno-67-15" href="#__codelineno-67-15"></a><span class="w"> </span><span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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<a id="__codelineno-67-16" name="__codelineno-67-16" href="#__codelineno-67-16"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">size</span><span class="p">()</span>
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<a id="__codelineno-67-17" name="__codelineno-67-17" href="#__codelineno-67-17"></a><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-67-18" name="__codelineno-67-18" href="#__codelineno-67-18"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">numsSize</span><span class="p">;</span>
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<a id="__codelineno-67-19" name="__codelineno-67-19" href="#__codelineno-67-19"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-67-20" name="__codelineno-67-20" href="#__codelineno-67-20"></a>
|
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<a id="__codelineno-67-21" name="__codelineno-67-21" href="#__codelineno-67-21"></a><span class="w"> </span><span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-67-22" name="__codelineno-67-22" href="#__codelineno-67-22"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">capacity</span><span class="p">()</span>
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<a id="__codelineno-67-23" name="__codelineno-67-23" href="#__codelineno-67-23"></a><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-67-24" name="__codelineno-67-24" href="#__codelineno-67-24"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">numsCapacity</span><span class="p">;</span>
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<a id="__codelineno-67-25" name="__codelineno-67-25" href="#__codelineno-67-25"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-67-26" name="__codelineno-67-26" href="#__codelineno-67-26"></a>
|
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|
<a id="__codelineno-67-27" name="__codelineno-67-27" href="#__codelineno-67-27"></a><span class="w"> </span><span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-67-28" name="__codelineno-67-28" href="#__codelineno-67-28"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">get</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span>
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<a id="__codelineno-67-29" name="__codelineno-67-29" href="#__codelineno-67-29"></a><span class="w"> </span><span class="p">{</span>
|
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|
<a id="__codelineno-67-30" name="__codelineno-67-30" href="#__codelineno-67-30"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-67-31" name="__codelineno-67-31" href="#__codelineno-67-31"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">numsSize</span><span class="p">)</span>
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<a id="__codelineno-67-32" name="__codelineno-67-32" href="#__codelineno-67-32"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-67-33" name="__codelineno-67-33" href="#__codelineno-67-33"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
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|
<a id="__codelineno-67-34" name="__codelineno-67-34" href="#__codelineno-67-34"></a><span class="w"> </span><span class="p">}</span>
|
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|
<a id="__codelineno-67-35" name="__codelineno-67-35" href="#__codelineno-67-35"></a>
|
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|
<a id="__codelineno-67-36" name="__codelineno-67-36" href="#__codelineno-67-36"></a><span class="w"> </span><span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-67-37" name="__codelineno-67-37" href="#__codelineno-67-37"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">set</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span>
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<a id="__codelineno-67-38" name="__codelineno-67-38" href="#__codelineno-67-38"></a><span class="w"> </span><span class="p">{</span>
|
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|
<a id="__codelineno-67-39" name="__codelineno-67-39" href="#__codelineno-67-39"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">numsSize</span><span class="p">)</span>
|
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|
<a id="__codelineno-67-40" name="__codelineno-67-40" href="#__codelineno-67-40"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-67-41" name="__codelineno-67-41" href="#__codelineno-67-41"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-42" name="__codelineno-67-42" href="#__codelineno-67-42"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-43" name="__codelineno-67-43" href="#__codelineno-67-43"></a>
|
|
|
<a id="__codelineno-67-44" name="__codelineno-67-44" href="#__codelineno-67-44"></a><span class="w"> </span><span class="cm">/* 尾部添加元素 */</span>
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|
|
<a id="__codelineno-67-45" name="__codelineno-67-45" href="#__codelineno-67-45"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">add</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-46" name="__codelineno-67-46" href="#__codelineno-67-46"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-47" name="__codelineno-67-47" href="#__codelineno-67-47"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
|
|
<a id="__codelineno-67-48" name="__codelineno-67-48" href="#__codelineno-67-48"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">numsSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">numsCapacity</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-49" name="__codelineno-67-49" href="#__codelineno-67-49"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-67-50" name="__codelineno-67-50" href="#__codelineno-67-50"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">numsSize</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-51" name="__codelineno-67-51" href="#__codelineno-67-51"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-67-52" name="__codelineno-67-52" href="#__codelineno-67-52"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-53" name="__codelineno-67-53" href="#__codelineno-67-53"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-54" name="__codelineno-67-54" href="#__codelineno-67-54"></a>
|
|
|
<a id="__codelineno-67-55" name="__codelineno-67-55" href="#__codelineno-67-55"></a><span class="w"> </span><span class="cm">/* 中间插入元素 */</span>
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|
|
<a id="__codelineno-67-56" name="__codelineno-67-56" href="#__codelineno-67-56"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">insert</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">,</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-57" name="__codelineno-67-57" href="#__codelineno-67-57"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-58" name="__codelineno-67-58" href="#__codelineno-67-58"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">numsSize</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-59" name="__codelineno-67-59" href="#__codelineno-67-59"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-67-60" name="__codelineno-67-60" href="#__codelineno-67-60"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
|
|
|
<a id="__codelineno-67-61" name="__codelineno-67-61" href="#__codelineno-67-61"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">numsSize</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">numsCapacity</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-62" name="__codelineno-67-62" href="#__codelineno-67-62"></a><span class="w"> </span><span class="n">extendCapacity</span><span class="p">();</span>
|
|
|
<a id="__codelineno-67-63" name="__codelineno-67-63" href="#__codelineno-67-63"></a><span class="w"> </span><span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
|
|
|
<a id="__codelineno-67-64" name="__codelineno-67-64" href="#__codelineno-67-64"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">numsSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">--</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-65" name="__codelineno-67-65" href="#__codelineno-67-65"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-66" name="__codelineno-67-66" href="#__codelineno-67-66"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
|
|
|
<a id="__codelineno-67-67" name="__codelineno-67-67" href="#__codelineno-67-67"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-68" name="__codelineno-67-68" href="#__codelineno-67-68"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-69" name="__codelineno-67-69" href="#__codelineno-67-69"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-67-70" name="__codelineno-67-70" href="#__codelineno-67-70"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">++</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-71" name="__codelineno-67-71" href="#__codelineno-67-71"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-72" name="__codelineno-67-72" href="#__codelineno-67-72"></a>
|
|
|
<a id="__codelineno-67-73" name="__codelineno-67-73" href="#__codelineno-67-73"></a><span class="w"> </span><span class="cm">/* 删除元素 */</span>
|
|
|
<a id="__codelineno-67-74" name="__codelineno-67-74" href="#__codelineno-67-74"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="nf">remove</span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">index</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-75" name="__codelineno-67-75" href="#__codelineno-67-75"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-76" name="__codelineno-67-76" href="#__codelineno-67-76"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="m">0</span><span class="w"> </span><span class="o">||</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">numsSize</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-77" name="__codelineno-67-77" href="#__codelineno-67-77"></a><span class="w"> </span><span class="k">throw</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="nf">IndexOutOfRangeException</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
|
|
|
<a id="__codelineno-67-78" name="__codelineno-67-78" href="#__codelineno-67-78"></a><span class="w"> </span><span class="kt">int</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
|
|
|
<a id="__codelineno-67-79" name="__codelineno-67-79" href="#__codelineno-67-79"></a><span class="w"> </span><span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
|
|
|
<a id="__codelineno-67-80" name="__codelineno-67-80" href="#__codelineno-67-80"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">numsSize</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="m">1</span><span class="p">;</span><span class="w"> </span><span class="n">j</span><span class="o">++</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-81" name="__codelineno-67-81" href="#__codelineno-67-81"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-82" name="__codelineno-67-82" href="#__codelineno-67-82"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="m">1</span><span class="p">];</span>
|
|
|
<a id="__codelineno-67-83" name="__codelineno-67-83" href="#__codelineno-67-83"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-84" name="__codelineno-67-84" href="#__codelineno-67-84"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
|
|
|
<a id="__codelineno-67-85" name="__codelineno-67-85" href="#__codelineno-67-85"></a><span class="w"> </span><span class="n">numsSize</span><span class="o">--</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-86" name="__codelineno-67-86" href="#__codelineno-67-86"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
|
|
|
<a id="__codelineno-67-87" name="__codelineno-67-87" href="#__codelineno-67-87"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-88" name="__codelineno-67-88" href="#__codelineno-67-88"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-89" name="__codelineno-67-89" href="#__codelineno-67-89"></a>
|
|
|
<a id="__codelineno-67-90" name="__codelineno-67-90" href="#__codelineno-67-90"></a><span class="w"> </span><span class="cm">/* 列表扩容 */</span>
|
|
|
<a id="__codelineno-67-91" name="__codelineno-67-91" href="#__codelineno-67-91"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="k">void</span><span class="w"> </span><span class="nf">extendCapacity</span><span class="p">()</span>
|
|
|
<a id="__codelineno-67-92" name="__codelineno-67-92" href="#__codelineno-67-92"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-93" name="__codelineno-67-93" href="#__codelineno-67-93"></a><span class="w"> </span><span class="c1">// 新建一个长度为 numsCapacity * extendRatio 的数组，并将原数组拷贝到新数组</span>
|
|
|
<a id="__codelineno-67-94" name="__codelineno-67-94" href="#__codelineno-67-94"></a><span class="w"> </span><span class="n">System</span><span class="p">.</span><span class="n">Array</span><span class="p">.</span><span class="n">Resize</span><span class="p">(</span><span class="k">ref</span><span class="w"> </span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">extendRatio</span><span class="p">);</span>
|
|
|
<a id="__codelineno-67-95" name="__codelineno-67-95" href="#__codelineno-67-95"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
|
|
|
<a id="__codelineno-67-96" name="__codelineno-67-96" href="#__codelineno-67-96"></a><span class="w"> </span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">nums</span><span class="p">.</span><span class="n">Length</span><span class="p">;</span>
|
|
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<a id="__codelineno-67-97" name="__codelineno-67-97" href="#__codelineno-67-97"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-98" name="__codelineno-67-98" href="#__codelineno-67-98"></a>
|
|
|
<a id="__codelineno-67-99" name="__codelineno-67-99" href="#__codelineno-67-99"></a><span class="w"> </span><span class="cm">/* 将列表转换为数组 */</span>
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|
|
<a id="__codelineno-67-100" name="__codelineno-67-100" href="#__codelineno-67-100"></a><span class="w"> </span><span class="k">public</span><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="nf">toArray</span><span class="p">()</span>
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<a id="__codelineno-67-101" name="__codelineno-67-101" href="#__codelineno-67-101"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-102" name="__codelineno-67-102" href="#__codelineno-67-102"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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|
<a id="__codelineno-67-103" name="__codelineno-67-103" href="#__codelineno-67-103"></a><span class="w"> </span><span class="kt">int</span><span class="p">[]</span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">new</span><span class="w"> </span><span class="kt">int</span><span class="p">[</span><span class="n">numsSize</span><span class="p">];</span>
|
|
|
<a id="__codelineno-67-104" name="__codelineno-67-104" href="#__codelineno-67-104"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="kt">int</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="m">0</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">numsSize</span><span class="p">;</span><span class="w"> </span><span class="n">i</span><span class="o">++</span><span class="p">)</span>
|
|
|
<a id="__codelineno-67-105" name="__codelineno-67-105" href="#__codelineno-67-105"></a><span class="w"> </span><span class="p">{</span>
|
|
|
<a id="__codelineno-67-106" name="__codelineno-67-106" href="#__codelineno-67-106"></a><span class="w"> </span><span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
|
|
|
<a id="__codelineno-67-107" name="__codelineno-67-107" href="#__codelineno-67-107"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-108" name="__codelineno-67-108" href="#__codelineno-67-108"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
|
|
|
<a id="__codelineno-67-109" name="__codelineno-67-109" href="#__codelineno-67-109"></a><span class="w"> </span><span class="p">}</span>
|
|
|
<a id="__codelineno-67-110" name="__codelineno-67-110" href="#__codelineno-67-110"></a><span class="p">}</span>
|
|
|
</code></pre></div>
|
|
|
</div>
|
|
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<div class="tabbed-block">
|
|
|
<div class="highlight"><span class="filename">my_list.swift</span><pre><span></span><code><a id="__codelineno-68-1" name="__codelineno-68-1" href="#__codelineno-68-1"></a><span class="cm">/* 列表类简易实现 */</span>
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<a id="__codelineno-68-2" name="__codelineno-68-2" href="#__codelineno-68-2"></a><span class="kd">class</span> <span class="nc">MyList</span> <span class="p">{</span>
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<a id="__codelineno-68-3" name="__codelineno-68-3" href="#__codelineno-68-3"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">nums</span><span class="p">:</span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="c1">// 数组（存储列表元素）</span>
|
|
|
<a id="__codelineno-68-4" name="__codelineno-68-4" href="#__codelineno-68-4"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">_capacity</span> <span class="p">=</span> <span class="mi">10</span> <span class="c1">// 列表容量</span>
|
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<a id="__codelineno-68-5" name="__codelineno-68-5" href="#__codelineno-68-5"></a> <span class="kd">private</span> <span class="kd">var</span> <span class="nv">_size</span> <span class="p">=</span> <span class="mi">0</span> <span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-68-6" name="__codelineno-68-6" href="#__codelineno-68-6"></a> <span class="kd">private</span> <span class="kd">let</span> <span class="nv">extendRatio</span> <span class="p">=</span> <span class="mi">2</span> <span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-68-7" name="__codelineno-68-7" href="#__codelineno-68-7"></a>
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<a id="__codelineno-68-8" name="__codelineno-68-8" href="#__codelineno-68-8"></a> <span class="cm">/* 构造方法 */</span>
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<a id="__codelineno-68-9" name="__codelineno-68-9" href="#__codelineno-68-9"></a> <span class="kd">init</span><span class="p">()</span> <span class="p">{</span>
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<a id="__codelineno-68-10" name="__codelineno-68-10" href="#__codelineno-68-10"></a> <span class="n">nums</span> <span class="p">=</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_capacity</span><span class="p">)</span>
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<a id="__codelineno-68-11" name="__codelineno-68-11" href="#__codelineno-68-11"></a> <span class="p">}</span>
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<a id="__codelineno-68-12" name="__codelineno-68-12" href="#__codelineno-68-12"></a>
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<a id="__codelineno-68-13" name="__codelineno-68-13" href="#__codelineno-68-13"></a> <span class="cm">/* 获取列表长度（即当前元素数量）*/</span>
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<a id="__codelineno-68-14" name="__codelineno-68-14" href="#__codelineno-68-14"></a> <span class="kd">func</span> <span class="nf">size</span><span class="p">()</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
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<a id="__codelineno-68-15" name="__codelineno-68-15" href="#__codelineno-68-15"></a> <span class="n">_size</span>
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<a id="__codelineno-68-16" name="__codelineno-68-16" href="#__codelineno-68-16"></a> <span class="p">}</span>
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<a id="__codelineno-68-17" name="__codelineno-68-17" href="#__codelineno-68-17"></a>
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<a id="__codelineno-68-18" name="__codelineno-68-18" href="#__codelineno-68-18"></a> <span class="cm">/* 获取列表容量 */</span>
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<a id="__codelineno-68-19" name="__codelineno-68-19" href="#__codelineno-68-19"></a> <span class="kd">func</span> <span class="nf">capacity</span><span class="p">()</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
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<a id="__codelineno-68-20" name="__codelineno-68-20" href="#__codelineno-68-20"></a> <span class="n">_capacity</span>
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<a id="__codelineno-68-21" name="__codelineno-68-21" href="#__codelineno-68-21"></a> <span class="p">}</span>
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<a id="__codelineno-68-22" name="__codelineno-68-22" href="#__codelineno-68-22"></a>
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<a id="__codelineno-68-23" name="__codelineno-68-23" href="#__codelineno-68-23"></a> <span class="cm">/* 访问元素 */</span>
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<a id="__codelineno-68-24" name="__codelineno-68-24" href="#__codelineno-68-24"></a> <span class="kd">func</span> <span class="nf">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
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<a id="__codelineno-68-25" name="__codelineno-68-25" href="#__codelineno-68-25"></a> <span class="c1">// 索引如果越界则抛出错误，下同</span>
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<a id="__codelineno-68-26" name="__codelineno-68-26" href="#__codelineno-68-26"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
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<a id="__codelineno-68-27" name="__codelineno-68-27" href="#__codelineno-68-27"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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|
<a id="__codelineno-68-28" name="__codelineno-68-28" href="#__codelineno-68-28"></a> <span class="p">}</span>
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<a id="__codelineno-68-29" name="__codelineno-68-29" href="#__codelineno-68-29"></a> <span class="k">return</span> <span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
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<a id="__codelineno-68-30" name="__codelineno-68-30" href="#__codelineno-68-30"></a> <span class="p">}</span>
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<a id="__codelineno-68-31" name="__codelineno-68-31" href="#__codelineno-68-31"></a>
|
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<a id="__codelineno-68-32" name="__codelineno-68-32" href="#__codelineno-68-32"></a> <span class="cm">/* 更新元素 */</span>
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<a id="__codelineno-68-33" name="__codelineno-68-33" href="#__codelineno-68-33"></a> <span class="kd">func</span> <span class="nf">set</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
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<a id="__codelineno-68-34" name="__codelineno-68-34" href="#__codelineno-68-34"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
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<a id="__codelineno-68-35" name="__codelineno-68-35" href="#__codelineno-68-35"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
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|
|
<a id="__codelineno-68-36" name="__codelineno-68-36" href="#__codelineno-68-36"></a> <span class="p">}</span>
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<a id="__codelineno-68-37" name="__codelineno-68-37" href="#__codelineno-68-37"></a> <span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
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|
<a id="__codelineno-68-38" name="__codelineno-68-38" href="#__codelineno-68-38"></a> <span class="p">}</span>
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|
|
<a id="__codelineno-68-39" name="__codelineno-68-39" href="#__codelineno-68-39"></a>
|
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|
<a id="__codelineno-68-40" name="__codelineno-68-40" href="#__codelineno-68-40"></a> <span class="cm">/* 尾部添加元素 */</span>
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<a id="__codelineno-68-41" name="__codelineno-68-41" href="#__codelineno-68-41"></a> <span class="kd">func</span> <span class="nf">add</span><span class="p">(</span><span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
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|
<a id="__codelineno-68-42" name="__codelineno-68-42" href="#__codelineno-68-42"></a> <span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-68-43" name="__codelineno-68-43" href="#__codelineno-68-43"></a> <span class="k">if</span> <span class="n">_size</span> <span class="p">==</span> <span class="n">_capacity</span> <span class="p">{</span>
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<a id="__codelineno-68-44" name="__codelineno-68-44" href="#__codelineno-68-44"></a> <span class="n">extendCapacity</span><span class="p">()</span>
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<a id="__codelineno-68-45" name="__codelineno-68-45" href="#__codelineno-68-45"></a> <span class="p">}</span>
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<a id="__codelineno-68-46" name="__codelineno-68-46" href="#__codelineno-68-46"></a> <span class="n">nums</span><span class="p">[</span><span class="n">_size</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
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|
|
<a id="__codelineno-68-47" name="__codelineno-68-47" href="#__codelineno-68-47"></a> <span class="c1">// 更新元素数量</span>
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|
<a id="__codelineno-68-48" name="__codelineno-68-48" href="#__codelineno-68-48"></a> <span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
|
<a id="__codelineno-68-49" name="__codelineno-68-49" href="#__codelineno-68-49"></a> <span class="p">}</span>
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<a id="__codelineno-68-50" name="__codelineno-68-50" href="#__codelineno-68-50"></a>
|
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<a id="__codelineno-68-51" name="__codelineno-68-51" href="#__codelineno-68-51"></a> <span class="cm">/* 中间插入元素 */</span>
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<a id="__codelineno-68-52" name="__codelineno-68-52" href="#__codelineno-68-52"></a> <span class="kd">func</span> <span class="nf">insert</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">,</span> <span class="n">num</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">{</span>
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<a id="__codelineno-68-53" name="__codelineno-68-53" href="#__codelineno-68-53"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
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|
|
<a id="__codelineno-68-54" name="__codelineno-68-54" href="#__codelineno-68-54"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
|
|
<a id="__codelineno-68-55" name="__codelineno-68-55" href="#__codelineno-68-55"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-56" name="__codelineno-68-56" href="#__codelineno-68-56"></a> <span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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|
|
<a id="__codelineno-68-57" name="__codelineno-68-57" href="#__codelineno-68-57"></a> <span class="k">if</span> <span class="n">_size</span> <span class="p">==</span> <span class="n">_capacity</span> <span class="p">{</span>
|
|
|
<a id="__codelineno-68-58" name="__codelineno-68-58" href="#__codelineno-68-58"></a> <span class="n">extendCapacity</span><span class="p">()</span>
|
|
|
<a id="__codelineno-68-59" name="__codelineno-68-59" href="#__codelineno-68-59"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-60" name="__codelineno-68-60" href="#__codelineno-68-60"></a> <span class="c1">// 将索引 index 以及之后的元素都向后移动一位</span>
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<a id="__codelineno-68-61" name="__codelineno-68-61" href="#__codelineno-68-61"></a> <span class="k">for</span> <span class="n">j</span> <span class="k">in</span> <span class="n">sequence</span><span class="p">(</span><span class="bp">first</span><span class="p">:</span> <span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">,</span> <span class="n">next</span><span class="p">:</span> <span class="p">{</span> <span class="nv">$0</span> <span class="o">>=</span> <span class="n">index</span> <span class="o">+</span> <span class="mi">1</span> <span class="p">?</span> <span class="nv">$0</span> <span class="o">-</span> <span class="mi">1</span> <span class="p">:</span> <span class="kc">nil</span> <span class="p">})</span> <span class="p">{</span>
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<a id="__codelineno-68-62" name="__codelineno-68-62" href="#__codelineno-68-62"></a> <span class="n">nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span> <span class="p">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span>
|
|
|
<a id="__codelineno-68-63" name="__codelineno-68-63" href="#__codelineno-68-63"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-64" name="__codelineno-68-64" href="#__codelineno-68-64"></a> <span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span> <span class="p">=</span> <span class="n">num</span>
|
|
|
<a id="__codelineno-68-65" name="__codelineno-68-65" href="#__codelineno-68-65"></a> <span class="c1">// 更新元素数量</span>
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|
|
<a id="__codelineno-68-66" name="__codelineno-68-66" href="#__codelineno-68-66"></a> <span class="n">_size</span> <span class="o">+=</span> <span class="mi">1</span>
|
|
|
<a id="__codelineno-68-67" name="__codelineno-68-67" href="#__codelineno-68-67"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-68" name="__codelineno-68-68" href="#__codelineno-68-68"></a>
|
|
|
<a id="__codelineno-68-69" name="__codelineno-68-69" href="#__codelineno-68-69"></a> <span class="cm">/* 删除元素 */</span>
|
|
|
<a id="__codelineno-68-70" name="__codelineno-68-70" href="#__codelineno-68-70"></a> <span class="p">@</span><span class="n">discardableResult</span>
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<a id="__codelineno-68-71" name="__codelineno-68-71" href="#__codelineno-68-71"></a> <span class="kd">func</span> <span class="nf">remove</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="nb">Int</span><span class="p">)</span> <span class="p">-></span> <span class="nb">Int</span> <span class="p">{</span>
|
|
|
<a id="__codelineno-68-72" name="__codelineno-68-72" href="#__codelineno-68-72"></a> <span class="k">if</span> <span class="n">index</span> <span class="o"><</span> <span class="mi">0</span> <span class="o">||</span> <span class="n">index</span> <span class="o">>=</span> <span class="n">_size</span> <span class="p">{</span>
|
|
|
<a id="__codelineno-68-73" name="__codelineno-68-73" href="#__codelineno-68-73"></a> <span class="bp">fatalError</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">)</span>
|
|
|
<a id="__codelineno-68-74" name="__codelineno-68-74" href="#__codelineno-68-74"></a> <span class="p">}</span>
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<a id="__codelineno-68-75" name="__codelineno-68-75" href="#__codelineno-68-75"></a> <span class="kd">let</span> <span class="nv">num</span> <span class="p">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span>
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|
|
<a id="__codelineno-68-76" name="__codelineno-68-76" href="#__codelineno-68-76"></a> <span class="c1">// 将索引 index 之后的元素都向前移动一位</span>
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|
|
<a id="__codelineno-68-77" name="__codelineno-68-77" href="#__codelineno-68-77"></a> <span class="k">for</span> <span class="n">j</span> <span class="k">in</span> <span class="n">index</span> <span class="p">..</span><span class="o"><</span> <span class="p">(</span><span class="n">_size</span> <span class="o">-</span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span>
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|
|
<a id="__codelineno-68-78" name="__codelineno-68-78" href="#__codelineno-68-78"></a> <span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span> <span class="p">=</span> <span class="n">nums</span><span class="p">[</span><span class="n">j</span> <span class="o">+</span> <span class="mi">1</span><span class="p">]</span>
|
|
|
<a id="__codelineno-68-79" name="__codelineno-68-79" href="#__codelineno-68-79"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-80" name="__codelineno-68-80" href="#__codelineno-68-80"></a> <span class="c1">// 更新元素数量</span>
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|
|
<a id="__codelineno-68-81" name="__codelineno-68-81" href="#__codelineno-68-81"></a> <span class="n">_size</span> <span class="o">-=</span> <span class="mi">1</span>
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|
|
<a id="__codelineno-68-82" name="__codelineno-68-82" href="#__codelineno-68-82"></a> <span class="c1">// 返回被删除元素</span>
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<a id="__codelineno-68-83" name="__codelineno-68-83" href="#__codelineno-68-83"></a> <span class="k">return</span> <span class="n">num</span>
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|
|
<a id="__codelineno-68-84" name="__codelineno-68-84" href="#__codelineno-68-84"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-85" name="__codelineno-68-85" href="#__codelineno-68-85"></a>
|
|
|
<a id="__codelineno-68-86" name="__codelineno-68-86" href="#__codelineno-68-86"></a> <span class="cm">/* 列表扩容 */</span>
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|
|
<a id="__codelineno-68-87" name="__codelineno-68-87" href="#__codelineno-68-87"></a> <span class="kd">func</span> <span class="nf">extendCapacity</span><span class="p">()</span> <span class="p">{</span>
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|
|
<a id="__codelineno-68-88" name="__codelineno-68-88" href="#__codelineno-68-88"></a> <span class="c1">// 新建一个长度为 size 的数组，并将原数组拷贝到新数组</span>
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|
<a id="__codelineno-68-89" name="__codelineno-68-89" href="#__codelineno-68-89"></a> <span class="n">nums</span> <span class="p">=</span> <span class="n">nums</span> <span class="o">+</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_capacity</span> <span class="o">*</span> <span class="p">(</span><span class="n">extendRatio</span> <span class="o">-</span> <span class="mi">1</span><span class="p">))</span>
|
|
|
<a id="__codelineno-68-90" name="__codelineno-68-90" href="#__codelineno-68-90"></a> <span class="c1">// 更新列表容量</span>
|
|
|
<a id="__codelineno-68-91" name="__codelineno-68-91" href="#__codelineno-68-91"></a> <span class="n">_capacity</span> <span class="p">=</span> <span class="n">nums</span><span class="p">.</span><span class="bp">count</span>
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|
|
<a id="__codelineno-68-92" name="__codelineno-68-92" href="#__codelineno-68-92"></a> <span class="p">}</span>
|
|
|
<a id="__codelineno-68-93" name="__codelineno-68-93" href="#__codelineno-68-93"></a>
|
|
|
<a id="__codelineno-68-94" name="__codelineno-68-94" href="#__codelineno-68-94"></a> <span class="cm">/* 将列表转换为数组 */</span>
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|
|
<a id="__codelineno-68-95" name="__codelineno-68-95" href="#__codelineno-68-95"></a> <span class="kd">func</span> <span class="nf">toArray</span><span class="p">()</span> <span class="p">-></span> <span class="p">[</span><span class="nb">Int</span><span class="p">]</span> <span class="p">{</span>
|
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<a id="__codelineno-68-96" name="__codelineno-68-96" href="#__codelineno-68-96"></a> <span class="kd">var</span> <span class="nv">nums</span> <span class="p">=</span> <span class="nb">Array</span><span class="p">(</span><span class="n">repeating</span><span class="p">:</span> <span class="mi">0</span><span class="p">,</span> <span class="bp">count</span><span class="p">:</span> <span class="n">_size</span><span class="p">)</span>
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<a id="__codelineno-68-97" name="__codelineno-68-97" href="#__codelineno-68-97"></a> <span class="k">for</span> <span class="n">i</span> <span class="k">in</span> <span class="mi">0</span> <span class="p">..</span><span class="o"><</span> <span class="n">_size</span> <span class="p">{</span>
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<a id="__codelineno-68-98" name="__codelineno-68-98" href="#__codelineno-68-98"></a> <span class="n">nums</span><span class="p">[</span><span class="n">i</span><span class="p">]</span> <span class="p">=</span> <span class="kr">get</span><span class="p">(</span><span class="n">index</span><span class="p">:</span> <span class="n">i</span><span class="p">)</span>
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<a id="__codelineno-68-99" name="__codelineno-68-99" href="#__codelineno-68-99"></a> <span class="p">}</span>
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<a id="__codelineno-68-100" name="__codelineno-68-100" href="#__codelineno-68-100"></a> <span class="k">return</span> <span class="n">nums</span>
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<a id="__codelineno-68-101" name="__codelineno-68-101" href="#__codelineno-68-101"></a> <span class="p">}</span>
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<a id="__codelineno-68-102" name="__codelineno-68-102" href="#__codelineno-68-102"></a><span class="p">}</span>
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</code></pre></div>
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</div>
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<div class="tabbed-block">
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<div class="highlight"><span class="filename">my_list.zig</span><pre><span></span><code><a id="__codelineno-69-1" name="__codelineno-69-1" href="#__codelineno-69-1"></a><span class="c1">// 列表类简易实现</span>
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<a id="__codelineno-69-2" name="__codelineno-69-2" href="#__codelineno-69-2"></a><span class="k">fn</span><span class="w"> </span><span class="n">MyList</span><span class="p">(</span><span class="kr">comptime</span><span class="w"> </span><span class="n">T</span><span class="o">:</span><span class="w"> </span><span class="kt">type</span><span class="p">)</span><span class="w"> </span><span class="kt">type</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-3" name="__codelineno-69-3" href="#__codelineno-69-3"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="k">struct</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-4" name="__codelineno-69-4" href="#__codelineno-69-4"></a><span class="w"> </span><span class="kr">const</span><span class="w"> </span><span class="n">Self</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="nb">@This</span><span class="p">();</span>
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<a id="__codelineno-69-5" name="__codelineno-69-5" href="#__codelineno-69-5"></a>
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<a id="__codelineno-69-6" name="__codelineno-69-6" href="#__codelineno-69-6"></a><span class="w"> </span><span class="n">nums</span><span class="o">:</span><span class="w"> </span><span class="p">[]</span><span class="n">T</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">undefined</span><span class="p">,</span><span class="w"> </span><span class="c1">// 数组（存储列表元素）</span>
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<a id="__codelineno-69-7" name="__codelineno-69-7" href="#__codelineno-69-7"></a><span class="w"> </span><span class="n">numsCapacity</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">10</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表容量</span>
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<a id="__codelineno-69-8" name="__codelineno-69-8" href="#__codelineno-69-8"></a><span class="w"> </span><span class="n">numSize</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">0</span><span class="p">,</span><span class="w"> </span><span class="c1">// 列表长度（即当前元素数量）</span>
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<a id="__codelineno-69-9" name="__codelineno-69-9" href="#__codelineno-69-9"></a><span class="w"> </span><span class="n">extendRatio</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="mi">2</span><span class="p">,</span><span class="w"> </span><span class="c1">// 每次列表扩容的倍数</span>
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<a id="__codelineno-69-10" name="__codelineno-69-10" href="#__codelineno-69-10"></a><span class="w"> </span><span class="n">mem_arena</span><span class="o">:</span><span class="w"> </span><span class="o">?</span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">ArenaAllocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">null</span><span class="p">,</span>
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<a id="__codelineno-69-11" name="__codelineno-69-11" href="#__codelineno-69-11"></a><span class="w"> </span><span class="n">mem_allocator</span><span class="o">:</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">Allocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="kc">undefined</span><span class="p">,</span><span class="w"> </span><span class="c1">// 内存分配器</span>
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<a id="__codelineno-69-12" name="__codelineno-69-12" href="#__codelineno-69-12"></a>
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<a id="__codelineno-69-13" name="__codelineno-69-13" href="#__codelineno-69-13"></a><span class="w"> </span><span class="c1">// 构造方法（分配内存+初始化列表）</span>
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<a id="__codelineno-69-14" name="__codelineno-69-14" href="#__codelineno-69-14"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">init</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">allocator</span><span class="o">:</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">Allocator</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-15" name="__codelineno-69-15" href="#__codelineno-69-15"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-16" name="__codelineno-69-16" href="#__codelineno-69-16"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">heap</span><span class="p">.</span><span class="n">ArenaAllocator</span><span class="p">.</span><span class="n">init</span><span class="p">(</span><span class="n">allocator</span><span class="p">);</span>
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<a id="__codelineno-69-17" name="__codelineno-69-17" href="#__codelineno-69-17"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="p">.</span><span class="o">?</span><span class="p">.</span><span class="n">allocator</span><span class="p">();</span>
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<a id="__codelineno-69-18" name="__codelineno-69-18" href="#__codelineno-69-18"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-19" name="__codelineno-69-19" href="#__codelineno-69-19"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numsCapacity</span><span class="p">);</span>
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<a id="__codelineno-69-20" name="__codelineno-69-20" href="#__codelineno-69-20"></a><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">set</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
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<a id="__codelineno-69-21" name="__codelineno-69-21" href="#__codelineno-69-21"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-22" name="__codelineno-69-22" href="#__codelineno-69-22"></a>
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<a id="__codelineno-69-23" name="__codelineno-69-23" href="#__codelineno-69-23"></a><span class="w"> </span><span class="c1">// 析构方法（释放内存）</span>
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<a id="__codelineno-69-24" name="__codelineno-69-24" href="#__codelineno-69-24"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">deinit</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-25" name="__codelineno-69-25" href="#__codelineno-69-25"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="kc">null</span><span class="p">)</span><span class="w"> </span><span class="k">return</span><span class="p">;</span>
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<a id="__codelineno-69-26" name="__codelineno-69-26" href="#__codelineno-69-26"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_arena</span><span class="p">.</span><span class="o">?</span><span class="p">.</span><span class="n">deinit</span><span class="p">();</span>
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<a id="__codelineno-69-27" name="__codelineno-69-27" href="#__codelineno-69-27"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-28" name="__codelineno-69-28" href="#__codelineno-69-28"></a>
|
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|
<a id="__codelineno-69-29" name="__codelineno-69-29" href="#__codelineno-69-29"></a><span class="w"> </span><span class="c1">// 获取列表长度（即当前元素数量）</span>
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<a id="__codelineno-69-30" name="__codelineno-69-30" href="#__codelineno-69-30"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">size</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-31" name="__codelineno-69-31" href="#__codelineno-69-31"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="p">;</span>
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<a id="__codelineno-69-32" name="__codelineno-69-32" href="#__codelineno-69-32"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-33" name="__codelineno-69-33" href="#__codelineno-69-33"></a>
|
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|
<a id="__codelineno-69-34" name="__codelineno-69-34" href="#__codelineno-69-34"></a><span class="w"> </span><span class="c1">// 获取列表容量</span>
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<a id="__codelineno-69-35" name="__codelineno-69-35" href="#__codelineno-69-35"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">capacity</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="kt">usize</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-36" name="__codelineno-69-36" href="#__codelineno-69-36"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numsCapacity</span><span class="p">;</span>
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<a id="__codelineno-69-37" name="__codelineno-69-37" href="#__codelineno-69-37"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-38" name="__codelineno-69-38" href="#__codelineno-69-38"></a>
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<a id="__codelineno-69-39" name="__codelineno-69-39" href="#__codelineno-69-39"></a><span class="w"> </span><span class="c1">// 访问元素</span>
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<a id="__codelineno-69-40" name="__codelineno-69-40" href="#__codelineno-69-40"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">get</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-41" name="__codelineno-69-41" href="#__codelineno-69-41"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-69-42" name="__codelineno-69-42" href="#__codelineno-69-42"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-69-43" name="__codelineno-69-43" href="#__codelineno-69-43"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
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<a id="__codelineno-69-44" name="__codelineno-69-44" href="#__codelineno-69-44"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
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<a id="__codelineno-69-45" name="__codelineno-69-45" href="#__codelineno-69-45"></a>
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<a id="__codelineno-69-46" name="__codelineno-69-46" href="#__codelineno-69-46"></a><span class="w"> </span><span class="c1">// 更新元素</span>
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<a id="__codelineno-69-47" name="__codelineno-69-47" href="#__codelineno-69-47"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">set</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-48" name="__codelineno-69-48" href="#__codelineno-69-48"></a><span class="w"> </span><span class="c1">// 索引如果越界则抛出异常，下同</span>
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<a id="__codelineno-69-49" name="__codelineno-69-49" href="#__codelineno-69-49"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-69-50" name="__codelineno-69-50" href="#__codelineno-69-50"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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<a id="__codelineno-69-51" name="__codelineno-69-51" href="#__codelineno-69-51"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
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<a id="__codelineno-69-52" name="__codelineno-69-52" href="#__codelineno-69-52"></a>
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<a id="__codelineno-69-53" name="__codelineno-69-53" href="#__codelineno-69-53"></a><span class="w"> </span><span class="c1">// 尾部添加元素</span>
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<a id="__codelineno-69-54" name="__codelineno-69-54" href="#__codelineno-69-54"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">add</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-55" name="__codelineno-69-55" href="#__codelineno-69-55"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-69-56" name="__codelineno-69-56" href="#__codelineno-69-56"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">())</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendCapacity</span><span class="p">();</span>
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<a id="__codelineno-69-57" name="__codelineno-69-57" href="#__codelineno-69-57"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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|
|
<a id="__codelineno-69-58" name="__codelineno-69-58" href="#__codelineno-69-58"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-69-59" name="__codelineno-69-59" href="#__codelineno-69-59"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-69-60" name="__codelineno-69-60" href="#__codelineno-69-60"></a><span class="w"> </span><span class="p">}</span><span class="w"> </span>
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<a id="__codelineno-69-61" name="__codelineno-69-61" href="#__codelineno-69-61"></a>
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<a id="__codelineno-69-62" name="__codelineno-69-62" href="#__codelineno-69-62"></a><span class="w"> </span><span class="c1">// 中间插入元素</span>
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<a id="__codelineno-69-63" name="__codelineno-69-63" href="#__codelineno-69-63"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">insert</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">,</span><span class="w"> </span><span class="n">num</span><span class="o">:</span><span class="w"> </span><span class="n">T</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-64" name="__codelineno-69-64" href="#__codelineno-69-64"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-69-65" name="__codelineno-69-65" href="#__codelineno-69-65"></a><span class="w"> </span><span class="c1">// 元素数量超出容量时，触发扩容机制</span>
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<a id="__codelineno-69-66" name="__codelineno-69-66" href="#__codelineno-69-66"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">==</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">())</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendCapacity</span><span class="p">();</span>
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<a id="__codelineno-69-67" name="__codelineno-69-67" href="#__codelineno-69-67"></a><span class="w"> </span><span class="c1">// 索引 i 以及之后的元素都向后移动一位</span>
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<a id="__codelineno-69-68" name="__codelineno-69-68" href="#__codelineno-69-68"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-69-69" name="__codelineno-69-69" href="#__codelineno-69-69"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">index</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-70" name="__codelineno-69-70" href="#__codelineno-69-70"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">];</span>
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<a id="__codelineno-69-71" name="__codelineno-69-71" href="#__codelineno-69-71"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-72" name="__codelineno-69-72" href="#__codelineno-69-72"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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<a id="__codelineno-69-73" name="__codelineno-69-73" href="#__codelineno-69-73"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-69-74" name="__codelineno-69-74" href="#__codelineno-69-74"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-69-75" name="__codelineno-69-75" href="#__codelineno-69-75"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-76" name="__codelineno-69-76" href="#__codelineno-69-76"></a>
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<a id="__codelineno-69-77" name="__codelineno-69-77" href="#__codelineno-69-77"></a><span class="w"> </span><span class="c1">// 删除元素</span>
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<a id="__codelineno-69-78" name="__codelineno-69-78" href="#__codelineno-69-78"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">remove</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">,</span><span class="w"> </span><span class="n">index</span><span class="o">:</span><span class="w"> </span><span class="kt">usize</span><span class="p">)</span><span class="w"> </span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-79" name="__codelineno-69-79" href="#__codelineno-69-79"></a><span class="w"> </span><span class="k">if</span><span class="w"> </span><span class="p">(</span><span class="n">index</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="mi">0</span><span class="w"> </span><span class="k">or</span><span class="w"> </span><span class="n">index</span><span class="w"> </span><span class="o">>=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">())</span><span class="w"> </span><span class="nb">@panic</span><span class="p">(</span><span class="s">"索引越界"</span><span class="p">);</span>
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<a id="__codelineno-69-80" name="__codelineno-69-80" href="#__codelineno-69-80"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">num</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">index</span><span class="p">];</span>
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<a id="__codelineno-69-81" name="__codelineno-69-81" href="#__codelineno-69-81"></a><span class="w"> </span><span class="c1">// 索引 i 之后的元素都向前移动一位</span>
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<a id="__codelineno-69-82" name="__codelineno-69-82" href="#__codelineno-69-82"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">j</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">index</span><span class="p">;</span>
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<a id="__codelineno-69-83" name="__codelineno-69-83" href="#__codelineno-69-83"></a><span class="w"> </span><span class="k">while</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o"><</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">()</span><span class="w"> </span><span class="o">-</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="o">:</span><span class="w"> </span><span class="p">(</span><span class="n">j</span><span class="w"> </span><span class="o">+=</span><span class="w"> </span><span class="mi">1</span><span class="p">)</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-84" name="__codelineno-69-84" href="#__codelineno-69-84"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="p">]</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">[</span><span class="n">j</span><span class="w"> </span><span class="o">+</span><span class="w"> </span><span class="mi">1</span><span class="p">];</span>
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<a id="__codelineno-69-85" name="__codelineno-69-85" href="#__codelineno-69-85"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-86" name="__codelineno-69-86" href="#__codelineno-69-86"></a><span class="w"> </span><span class="c1">// 更新元素数量</span>
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<a id="__codelineno-69-87" name="__codelineno-69-87" href="#__codelineno-69-87"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numSize</span><span class="w"> </span><span class="o">-=</span><span class="w"> </span><span class="mi">1</span><span class="p">;</span>
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<a id="__codelineno-69-88" name="__codelineno-69-88" href="#__codelineno-69-88"></a><span class="w"> </span><span class="c1">// 返回被删除元素</span>
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<a id="__codelineno-69-89" name="__codelineno-69-89" href="#__codelineno-69-89"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">num</span><span class="p">;</span>
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<a id="__codelineno-69-90" name="__codelineno-69-90" href="#__codelineno-69-90"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-91" name="__codelineno-69-91" href="#__codelineno-69-91"></a>
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<a id="__codelineno-69-92" name="__codelineno-69-92" href="#__codelineno-69-92"></a><span class="w"> </span><span class="c1">// 列表扩容</span>
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<a id="__codelineno-69-93" name="__codelineno-69-93" href="#__codelineno-69-93"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">extendCapacity</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="kt">void</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-94" name="__codelineno-69-94" href="#__codelineno-69-94"></a><span class="w"> </span><span class="c1">// 新建一个长度为 size * extendRatio 的数组，并将原数组拷贝到新数组</span>
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<a id="__codelineno-69-95" name="__codelineno-69-95" href="#__codelineno-69-95"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">newCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">capacity</span><span class="p">()</span><span class="w"> </span><span class="o">*</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">extendRatio</span><span class="p">;</span>
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<a id="__codelineno-69-96" name="__codelineno-69-96" href="#__codelineno-69-96"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">extend</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">);</span>
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<a id="__codelineno-69-97" name="__codelineno-69-97" href="#__codelineno-69-97"></a><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">set</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">extend</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
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<a id="__codelineno-69-98" name="__codelineno-69-98" href="#__codelineno-69-98"></a><span class="w"> </span><span class="c1">// 将原数组中的所有元素复制到新数组</span>
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<a id="__codelineno-69-99" name="__codelineno-69-99" href="#__codelineno-69-99"></a><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">copy</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">extend</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="p">);</span>
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<a id="__codelineno-69-100" name="__codelineno-69-100" href="#__codelineno-69-100"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">extend</span><span class="p">;</span>
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<a id="__codelineno-69-101" name="__codelineno-69-101" href="#__codelineno-69-101"></a><span class="w"> </span><span class="c1">// 更新列表容量</span>
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<a id="__codelineno-69-102" name="__codelineno-69-102" href="#__codelineno-69-102"></a><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">numsCapacity</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">newCapacity</span><span class="p">;</span>
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<a id="__codelineno-69-103" name="__codelineno-69-103" href="#__codelineno-69-103"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-104" name="__codelineno-69-104" href="#__codelineno-69-104"></a>
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|
<a id="__codelineno-69-105" name="__codelineno-69-105" href="#__codelineno-69-105"></a><span class="w"> </span><span class="c1">// 将列表转换为数组</span>
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<a id="__codelineno-69-106" name="__codelineno-69-106" href="#__codelineno-69-106"></a><span class="w"> </span><span class="kr">pub</span><span class="w"> </span><span class="k">fn</span><span class="w"> </span><span class="n">toArray</span><span class="p">(</span><span class="n">self</span><span class="o">:</span><span class="w"> </span><span class="o">*</span><span class="n">Self</span><span class="p">)</span><span class="w"> </span><span class="o">!</span><span class="p">[]</span><span class="n">T</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-107" name="__codelineno-69-107" href="#__codelineno-69-107"></a><span class="w"> </span><span class="c1">// 仅转换有效长度范围内的列表元素</span>
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<a id="__codelineno-69-108" name="__codelineno-69-108" href="#__codelineno-69-108"></a><span class="w"> </span><span class="kr">var</span><span class="w"> </span><span class="n">nums</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="k">try</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">mem_allocator</span><span class="p">.</span><span class="n">alloc</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">size</span><span class="p">());</span>
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<a id="__codelineno-69-109" name="__codelineno-69-109" href="#__codelineno-69-109"></a><span class="w"> </span><span class="n">std</span><span class="p">.</span><span class="n">mem</span><span class="p">.</span><span class="n">set</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="n">nums</span><span class="p">,</span><span class="w"> </span><span class="nb">@as</span><span class="p">(</span><span class="n">T</span><span class="p">,</span><span class="w"> </span><span class="mi">0</span><span class="p">));</span>
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<a id="__codelineno-69-110" name="__codelineno-69-110" href="#__codelineno-69-110"></a><span class="w"> </span><span class="k">for</span><span class="w"> </span><span class="p">(</span><span class="n">nums</span><span class="p">)</span><span class="w"> </span><span class="o">|*</span><span class="n">num</span><span class="p">,</span><span class="w"> </span><span class="n">i</span><span class="o">|</span><span class="w"> </span><span class="p">{</span>
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<a id="__codelineno-69-111" name="__codelineno-69-111" href="#__codelineno-69-111"></a><span class="w"> </span><span class="n">num</span><span class="p">.</span><span class="o">*</span><span class="w"> </span><span class="o">=</span><span class="w"> </span><span class="n">self</span><span class="p">.</span><span class="n">get</span><span class="p">(</span><span class="n">i</span><span class="p">);</span>
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<a id="__codelineno-69-112" name="__codelineno-69-112" href="#__codelineno-69-112"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-113" name="__codelineno-69-113" href="#__codelineno-69-113"></a><span class="w"> </span><span class="k">return</span><span class="w"> </span><span class="n">nums</span><span class="p">;</span>
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<a id="__codelineno-69-114" name="__codelineno-69-114" href="#__codelineno-69-114"></a><span class="w"> </span><span class="p">}</span>
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<a id="__codelineno-69-115" name="__codelineno-69-115" href="#__codelineno-69-115"></a><span class="w"> </span><span class="p">};</span>
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<a id="__codelineno-69-116" name="__codelineno-69-116" href="#__codelineno-69-116"></a><span class="p">}</span>
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</code></pre></div>
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