C# 中带有比较器的 HashSet 数组

# 使用C#中带有比较器的HashSet数组

csharp
using System;
using System.Collections.Generic;
class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}
class AgeComparer : IEqualityComparer
{
    public bool Equals(Person x, Person y)
    {
        return x.Age == y.Age;
    }
    public int GetHashCode(Person obj)
    {
        return obj.Age.GetHashCode();
    }
}
class Program
{
    static void Main()
    {
        // 使用自定义比较器创建HashSet
        HashSet people = new HashSet(new AgeComparer());
        // 添加Person对象
        people.Add(new Person { Name = "Alice", Age = 25 });
        people.Add(new Person { Name = "Bob", Age = 30 });
        people.Add(new Person { Name = "Charlie", Age = 25 });
        // 输出HashSet中的元素
        foreach (var person in people)
        {
            Console.WriteLine($"Name: {person.Name}, Age: {person.Age}");
        }
    }
}