从IEnumerable <DateTime>获取最早的日期

using System;
using System.Collections.Generic;
using System.Linq;

public class Program
{
    public static void Main()
    {
        IEnumerable<DateTime> dates = new List<DateTime>()
        {
            new DateTime(2022, 1, 1),
            new DateTime(2022, 2, 1),
            new DateTime(2022, 3, 1),
            new DateTime(2022, 4, 1)
        };

        DateTime earliestDate = dates.Min();

        Console.WriteLine("最早的日期是：" + earliestDate.ToString("yyyy-MM-dd"));
    }
}