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			58 lines
		
	
	
		
			1.7 KiB
		
	
	
	
		
			C#
		
	
	
	
	
	
			
		
		
	
	
			58 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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