C# 程序合并两个键的字典
csharpprogrammingserver side programming更新于 2025/9/16 18:10:00
首先，设置要合并的字典 −
Dictionary <string, int> dict1 = new Dictionary <string, int> ();
dict1.Add("one", 1);
dict1.Add("Two", 2);
Dictionary <string, int> dict2 = new Dictionary <string, int> ();
dict2.Add("Three", 3);
dict2.Add("Four", 4);
现在，使用 HashSet 合并它们。用于相同目的的方法是 UnionWith() −
HashSet <string> hSet = new HashSet <string> (dict1.Keys); hSet.UnionWith(dict2.Keys);
以下是完整代码 −
示例
using System;
using System.Collections.Generic;
public class Program {
public static void Main() {
Dictionary <string, int> dict1 = new Dictionary <string, int> ();
dict1.Add("one", 1);
dict1.Add("Two", 2);
Dictionary <string, int> dict2 = new Dictionary <string, int> ();
dict2.Add("Three", 3);
dict2.Add("Four", 4);
HashSet <string> hSet = new HashSet <string> (dict1.Keys);
hSet.UnionWith(dict2.Keys);
Console.WriteLine("Union of Dictionary...");
foreach(string val in hSet) {
Console.WriteLine(val);
}
}
}
输出
Union of Dictionary... one Two Three Four
