using System;using System.Threading;namespace ConsoleApplication1{    class Program    {        static void Main(string[] args)        {            var p = new Program();            p.Do();            p.Signal();        }        AutoResetEvent autoResetEvent = new AutoResetEvent(false); //false代表默认中阻塞状态        void Do()        {            var worker = new Thread(() =>            {                Console.WriteLine("Start worker");                Console.WriteLine("wait");                autoResetEvent.WaitOne(); //等待信号                Console.WriteLine("do");            });            worker.Start();        }        void Signal()        {            Console.WriteLine("Sent signal");            Console.ReadKey();            autoResetEvent.Set(); //发送信号            Console.ReadKey();        }    }}

ManualResetEvent需要手动设定阻塞状态设置为false