C# 在 IEnumerableT 上使用自定义 IEqualityComparer 进行区分

csharp
public class Person
{
    public string Name { get; set; }
    public int Age { get; set; }
}
public class PersonEqualityComparer : IEqualityComparer
{
    public bool Equals(Person x, Person y)
    {
        if (x == null || y == null)
            return false;
        return x.Name == y.Name && x.Age == y.Age;
    }
    public int GetHashCode(Person obj)
    {
        return obj.Name.GetHashCode() ^ obj.Age.GetHashCode();
    }
}

csharp
static void Main(string[] args)
{
    List people = new List()
    {
        new Person { Name = "Alice", Age = 25 },
        new Person { Name = "Bob", Age = 30 },
        new Person { Name = "Alice", Age = 25 }
    };
    var distinctPeople = people.Distinct(new PersonEqualityComparer());
    foreach (var person in distinctPeople)
    {
        Console.WriteLine($"Name: {person.Name}, Age: {person.Age}");
    }
}