用于验证日期的正则表达式 - C#

using System;
using System.Text.RegularExpressions;

public class Program
{
    public static void Main()
    {
        string date = "2022-01-01";
        string pattern = @"\d{4}-\d{2}-\d{2}";

        if (Regex.IsMatch(date, pattern))
        {
            Console.WriteLine("Valid date format");
        }
        else
        {
            Console.WriteLine("Invalid date format");
        }
    }
}