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2.add a file header for all the files
57 lines
1.7 KiB
C#
57 lines
1.7 KiB
C#
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/**
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* File: hash_map.cs
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* Created Time: 2022-12-23
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* Author: haptear (haptear@hotmail.com)
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*/
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using hello_algo.include;
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using NUnit.Framework;
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namespace hello_algo.chapter_hashing
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{
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public class hash_map {
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[Test]
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public void Test()
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{
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/* 初始化哈希表 */
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Dictionary<int, String> map = new ();
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/* 添加操作 */
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// 在哈希表中添加键值对 (key, value)
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map.Add(12836, "小哈");
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map.Add(15937, "小啰");
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map.Add(16750, "小算");
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map.Add(13276, "小法");
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map.Add(10583, "小鸭");
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Console.WriteLine("\n添加完成后,哈希表为\nKey -> Value");
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PrintUtil.printHashMap(map);
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/* 查询操作 */
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// 向哈希表输入键 key ,得到值 value
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String name = map[15937];
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Console.WriteLine("\n输入学号 15937 ,查询到姓名 " + name);
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/* 删除操作 */
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// 在哈希表中删除键值对 (key, value)
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map.Remove(10583);
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Console.WriteLine("\n删除 10583 后,哈希表为\nKey -> Value");
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PrintUtil.printHashMap(map);
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/* 遍历哈希表 */
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Console.WriteLine("\n遍历键值对 Key->Value");
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foreach (var kv in map) {
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Console.WriteLine(kv.Key + " -> " + kv.Value);
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}
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Console.WriteLine("\n单独遍历键 Key");
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foreach (int key in map.Keys) {
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Console.WriteLine(key);
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}
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Console.WriteLine("\n单独遍历值 Value");
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foreach (String val in map.Values) {
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Console.WriteLine(val);
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}
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}
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}
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}
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