C#按两个日期对列表进行排序

using System;
using System.Collections.Generic;

public class MyClass
{
    public DateTime Date1 { get; set; }
    public DateTime Date2 { get; set; }
}

public class DateComparer : IComparer<MyClass>
{
    public int Compare(MyClass x, MyClass y)
    {
        // 按照 Date1 进行比较
        int result = x.Date1.CompareTo(y.Date1);
        
        // 如果 Date1 相同，则按照 Date2 进行比较
        if (result == 0)
        {
            result = x.Date2.CompareTo(y.Date2);
        }
        
        return result;
    }
}

public class Program
{
    public static void Main()
    {
        List<MyClass> myList = new List<MyClass>
        {
            new MyClass { Date1 = new DateTime(2022, 1, 1), Date2 = new DateTime(2022, 1, 2) },
            new MyClass { Date1 = new DateTime(2021, 12, 31), Date2 = new DateTime(2022, 1, 1) },
            new MyClass { Date1 = new DateTime(2022, 1, 1), Date2 = new DateTime(2022, 1, 1) }
        };
        
        myList.Sort(new DateComparer());
        
        foreach (var item in myList)
        {
            Console.WriteLine($"Date1: {item.Date1}, Date2: {item.Date2}");
        }
    }
}