多线程编程中Join与WaitOne的区别

举例说明：
Join：在一个线程MainThread中开启一个新的线程NewThread，在完成初始化并启动NewThread的操作后，调用Join，则MainThread堵塞，直到NewThread执行完毕，MainThread才继续执行。

using System;
using System.Threading;

class IsThreadPool
{
    static void Main()
    {
        Console.WriteLine("MainThread start.");

        AutoResetEvent autoEvent = new AutoResetEvent(false);

        Thread NewThread =
            new Thread(new ThreadStart(ThreadMethod));
        NewThread.Start();

        // Wait for foreground thread to end.
        NewThread.Join();

        Console.WriteLine("MainThread end.");
    }

    static void ThreadMethod()
    {
        Console.WriteLine("haha,NewMethod");
    }
}

运行结果：
MainThread start.
haha,NewMethod
MainThread end.

WaitOne：在一个线程MainThread中开启一个新的线程NewThread，在完成初始化并启动NewThread的操作后，调用WaitOne，则MainThread堵塞，直到在NewThread中调用Set，MainThread才继续执行。

using System;
using System.Threading;

class WaitOne
{
    static AutoResetEvent autoEvent = new AutoResetEvent(false);

    static void Main()
    {
        Console.WriteLine("MainThread start.");

        ThreadPool.QueueUserWorkItem(
            new WaitCallback(WorkMethod), autoEvent);

        // Wait for work method to signal.
        autoEvent.WaitOne();
        Console.WriteLine("MainThread continue.");

        Console.WriteLine("MainThread end.");
    }

    static void WorkMethod(object stateInfo)
    {
        Console.WriteLine("Work start.");

        // Simulate time spent working.
        Thread.Sleep(new Random().Next(100, 2000));

        // Signal that work is finished.
        Console.WriteLine("Work end.");
        ((AutoResetEvent)stateInfo).Set();
    }
}

运行结果：
MainThread start.
Work start.
Work end.
MainThread end.

转载于:https://www.cnblogs.com/bartholomew/archive/2006/07/10/447408.html