多线程

using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using System.Xml.Serialization;
using System.Threading;
using System.Collections;
using System.Threading;

 

namespace ConsoleApplication1
{
    class Work
    {
        private static EventWaitHandle ewh;
        private static long threadCount = 0;
        private static EventWaitHandle clearCount =new EventWaitHandle(false, EventResetMode.AutoReset);
        private static void ThreadProc(object data)
        {
            int index = (int)data;
            Console.WriteLine("Thread {0} blocks.", data);
            Interlocked.Increment(ref threadCount);
            ewh.WaitOne();
            Console.WriteLine("Thread {0} exits.", data);
            Interlocked.Decrement(ref threadCount);
            clearCount.Set();
        }
        static void Main(string[] args)
        {
            ewh = new EventWaitHandle(false, EventResetMode.AutoReset);
            for (int i = 0; i <= 4; i++)
            {
                Thread t = new Thread(new ParameterizedThreadStart(ThreadProc));
                t.Start(i);
            }
            while (Interlocked.Read(ref threadCount) < 5)
            {
                Thread.Sleep(500);
            }
            while (Interlocked.Read(ref threadCount) > 0)
            {
                Console.WriteLine("Press ENTER to release a waiting thread.");
                Console.ReadLine();
                WaitHandle.SignalAndWait(ewh, clearCount);
            }
            Console.WriteLine();
            ewh = new EventWaitHandle(false, EventResetMode.ManualReset);
            for (int i = 0; i <= 4; i++)
            {
                Thread t = new Thread(new ParameterizedThreadStart(ThreadProc)  );
                t.Start(i);
            }
            while (Interlocked.Read(ref threadCount) < 5)
            {
                Thread.Sleep(500);
            }
            Console.WriteLine("Press ENTER to release the waiting threads.");
            Console.ReadLine();
            ewh.Set();
        }
    }
}