在 C# 中检查 HashSet 是否为指定集合的真子集
csharpserver side programmingprogramming更新于 2025/9/13 18:45:00
要检查 HashSet 是否为指定集合的真子集，请尝试以下代码 −
示例
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
HashSet<int> set1 = new HashSet<int>();
set1.Add(70);
set1.Add(100);
set1.Add(125);
set1.Add(150);
Console.WriteLine("Elements in HashSet1");
foreach(int val in set1){
Console.WriteLine(val);
}
HashSet<int> set2 = new HashSet<int>();
set2.Add(30);
set2.Add(60);
set2.Add(70);
set2.Add(80);
set2.Add(100);
set2.Add(125);
set2.Add(150);
set2.Add(200);
Console.WriteLine("Elements in HashSet2");
foreach(int val in set2){
Console.WriteLine(val);
}
Console.WriteLine("Is set1 a proper subset of set2? "+set1.IsProperSubsetOf(set2));
}
}
输出
这将产生以下输出 −
Elements in HashSet1 70 100 125 150 Elements in HashSet2 30 60 70 80 100 125 150 200 Is set1 a proper subset of set2? True
示例
现在让我们看另一个例子 −
using System;
using System.Collections.Generic;
public class Demo {
public static void Main(){
HashSet<int> set1 = new HashSet<int>();
set1.Add(10);
set1.Add(20);
Console.WriteLine("Elements in HashSet1");
foreach(int val in set1){
Console.WriteLine(val);
}
HashSet<int> set2 = new HashSet<int>();
set2.Add(30);
set2.Add(60);
set2.Add(70);
set2.Add(80);
set2.Add(100);
set2.Add(125);
set2.Add(150);
set2.Add(200);
Console.WriteLine("Elements in HashSet2");
foreach(int val in set2){
Console.WriteLine(val);
}
Console.WriteLine("Is set1 a proper subset of set2? "+set1.IsProperSubsetOf(set2));
}
}
输出
这将产生以下输出 −
Elements in HashSet1 10 20 Elements in HashSet2 30 60 70 80 100 125 150 200 Is set1 a proper subset of set2?False
