在 C# 中检查 HashSet 是否是指定集合的超集
csharpserver side programmingprogramming更新于 2025/9/13 0:08:00
要检查 HashSet 是否是指定集合的超集，代码如下 −
示例
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
HashSet<string> set1 = new HashSet<string>();
set1.Add("AB");
set1.Add("CD");
set1.Add("EF");
set1.Add("AB");
set1.Add("IJ");
set1.Add("KL");
set1.Add("EF");
set1.Add("OP");
Console.WriteLine("Elements in HashSet1");
foreach(string val in set1){
Console.WriteLine(val);
}
HashSet<string> set2 = new HashSet<string>();
set2.Add("EF");
set2.Add("KL");
Console.WriteLine("Elements in HashSet2");
foreach(string val in set2){
Console.WriteLine(val);
}
Console.WriteLine("Is set1 a superset of set2? "+set1.IsSupersetOf(set2));
}
}
输出
这将产生以下输出:
Elements in HashSet1 AB CD EF IJ KL OP Elements in HashSet2 EF KL Is set1 a superset of set2? True
示例
让我们看另一个例子 −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
HashSet<string> set1 = new HashSet<string>();
set1.Add("IJ");
set1.Add("KL");
set1.Add("EF");
set1.Add("OP");
Console.WriteLine("Elements in HashSet1");
foreach(string val in set1){
Console.WriteLine(val);
}
HashSet<string> set2 = new HashSet<string>();
set2.Add("KL");
set2.Add("MN");
set2.Add("OP");
set2.Add("QR");
Console.WriteLine("Elements in HashSet2");
foreach(string val in set2){
Console.WriteLine(val);
}
Console.WriteLine("Is set1 a superset of set2? "+set1.IsSupersetOf(set2));
}
}
输出
这将产生以下输出 −
Elements in HashSet1 IJ KL EF OP Elements in HashSet2 KL MN OP QR Is set1 a superset of set2? False
