using System;

using System.Collections.Generic;

using System.Threading;

using System.Threading.Tasks;

​

​

public class Program

{

    private static AutoResetEvent AutoEvent = new AutoResetEvent(false);

    public static void Main()

    {

        for(int i =0 ;i<=2 ;i++){

            Thread t = new Thread(ThreadProc);

            t.Name = "Thread_"+i;

            t.Start();

        }

        Thread.Sleep(1000);

​

        AutoEvent.Set();

​

    }

    private static void ThreadProc(){

        string name = Thread.CurrentThread.Name;

        Console.WriteLine(name +"starts with wait");

        AutoEvent.WaitOne();

        Console.WriteLine(name+" released");

        Thread.Sleep(500);

    }

}