C# 一个线程完成并挂起其他线程时的多线程

我想在

islem

完成时执行。其他线程挂起，但不工作

---

我读过关于

ManualResetEvent

的书，但我无法理解多线程示例。它们只适用于一个简单的线程。另外，我读了这篇文章后发现了类似的问题，比如我正在处理多线程对象

如果您只需要取消工作线程，最简单的方法是使用标志。您必须标记标志

volatile

，以确保所有线程使用相同的副本

islem = new Thread(new ThreadStart(ilk));
         islem2 = new Thread(new ThreadStart(ikinci));
         islem3 = new Thread(new ThreadStart(ucuncu));
         islem4 = new Thread(new ThreadStart(dorduncu));
         islem.Start();
         islem2.Start();
         islem3.Start();
         islem4.Start();



        if (!islem.IsAlive)
        {
            islem2.Suspend();
            islem3.Suspend();
            islem4.Suspend();
        }

如果您确实想暂停（我不知道为什么），可以使用ManualResetEvent。这允许在不消耗暂停线程资源的情况下执行阻塞行为

private volatile bool _done = false;

void Main()
{
    StartWorkerThreads();
}

void WorkerThread()
{
    while (true)
    {
        if (_done) return; //Someone else solved the problem, so exit.
        ContinueSolvingTheProblem();
    }
    _done = true; //Tell everyone else to stop working.
}

您还可以结合使用这些方法，例如，如果您希望能够暂停线程，执行更多工作，然后取消它们：

//When signalled, indicates threads can proceed.
//When reset, threads should pause as soon as possible.
//Constructor argument = true so it is set by default
private ManualResetEvent _go = new ManualResetEvent(true);

void Main()
{
    StartWorkerThreads();
}

void WorkerThread()
{
    while (true)
    {
        _go.WaitOne();  //Pause if the go event has been reset
        ContinueSolvingTheProblem();
    }
    _go.Reset();  //Reset the go event in order to pause the other threads
}

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可能是重复的不，不是。我的问题是不同的，因为我需要更多的细节。我的线程试图从不同的位置找出相同的问题。我必须知道其中一个问题何时完成。其他线程暂停这看起来像

private volatile bool _done = false;
private ManualResetEvent _go = new ManualResetEvent(true);

void Main()
{
    StartWorkerThreads();
}

void WorkerThread()
{
    while (true)
    {
        if (_done) return; //Exit if problem has been solved
        _go.WaitOne();  //Pause if the go event has been reset
        if (_done) return; //Exit if problem was solved while we were waiting
        ContinueSolvingTheProblem();
    }
    _go.Reset();  //Reset the go event in order to pause the other threads
    if (VerifyAnswer())
    {
        _done = true; //Set the done flag to indicate all threads should exit
    }
    else
    {
        _go.Set(); //Tell other threads to continue
    }
}