如何使我的C#程序睡眠50毫秒？

using System;

class Program
{
    static void Main(string[] args)
    {
        // Sleep your program for 50 milliseconds (0.5 seconds)
        Thread.Sleep(50);
    }
}

using System;
using System.Threading;

class Program
{
    static void Main(string[] args)
    {
        // Wait for a task to complete, for 50 milliseconds (0.5 seconds)
        Task.Delay(50).Wait();
    }
}