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60 lines
1.2 KiB
60 lines
1.2 KiB
2 years ago
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/**
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* File: list.dart
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* Created Time: 2023-01-24
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* Author: Jefferson (JeffersonHuang77@gmail.com)
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*/
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int main() {
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/* 初始化列表 */
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List<int> list = [1,3,2,5,4];
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print('列表 list = $list');
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/* 访问元素 */
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int num = list[1];
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print('访问索引 1 处的元素，得到 num = $num');
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/* 更新元素 */
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list[1] = 0;
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print('将索引 1 处的元素更新为 0 ，得到 list = $list');
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/* 清空列表 */
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list.clear();
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print('清空列表后 list = $list');
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/* 尾部添加元素 */
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list.add(1);
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list.add(3);
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list.add(2);
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list.add(5);
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list.add(4);
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print('添加元素后 list = $list');
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/* 中间插入元素 */
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list.insert(3, 6);
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print('在索引 3 处插入数字 6 ，得到 list = $list');
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/* 删除元素 */
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list.remove(3);
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/* 通过索引遍历列表 */
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int count = 0;
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for (var i = 0; i < list.length; i++) {
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count++;
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}
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/* 直接遍历列表元素 */
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count = 0;
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for (var n in list) {
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count++;
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}
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/* 拼接两个列表 */
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List<int> list1 = [6,8,7,10,9];
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list.addAll(list1);
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print('将列表 list1 拼接到 list 之后，得到 list = $list');
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/* 排序列表 */
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list.sort();
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print('排序列表后 list = $list');
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return 0;
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}
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