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42 lines
1.2 KiB
42 lines
1.2 KiB
8 months ago
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/**
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* File: hash_map.dart
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* Created Time: 2023-03-29
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* Author: liuyuxin (gvenusleo@gmail.com)
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*/
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/* Driver Code */
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void main() {
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/* 初始化雜湊表 */
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final Map<int, String> map = {};
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/* 新增操作 */
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// 在雜湊表中新增鍵值對 (key, value)
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map[12836] = "小哈";
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map[15937] = "小囉";
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map[16750] = "小算";
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map[13276] = "小法";
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map[10583] = "小鴨";
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print("\n新增完成後，雜湊表為\nKey -> Value");
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map.forEach((key, value) => print("$key -> $value"));
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/* 查詢操作 */
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// 向雜湊表中輸入鍵 key ，得到值 value
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final String? name = map[15937];
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print("\n輸入學號 15937 ，查詢到姓名 $name");
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/* 刪除操作 */
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// 在雜湊表中刪除鍵值對 (key, value)
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map.remove(10583);
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print("\n刪除 10583 後，雜湊表為\nKey -> Value");
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map.forEach((key, value) => print("$key -> $value"));
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/* 走訪雜湊表 */
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print("\n走訪鍵值對 Key->Value");
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map.forEach((key, value) => print("$key -> $value"));
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print("\n單獨走訪鍵 Key");
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map.keys.forEach((key) => print(key));
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print("\n單獨走訪值 Value");
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map.forEach((key, value) => print("$value"));
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map.values.forEach((value) => print(value));
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}
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