c# - 如何取消线程？

Question

如果是BackgroundWorker ，e.Cancel - DoWork - 事件处理程序的属性可以报告取消。

我怎样才能用 Thread 达到同样的目的？对象？

Answer 1

这是一种实现方法的完整示例。

private static bool _runThread;
private static object _runThreadLock = new object();

private static void Main(string[] args)
{
    _runThread = true;
    Thread t = new Thread(() =>
    {
        Console.WriteLine("Starting thread...");
        bool _localRunThread = true;
        while (_localRunThread)
        {
            Console.WriteLine("Working...");
            Thread.Sleep(1000);
            lock (_runThreadLock)
            {
                _localRunThread = _runThread;
            }
        }
        Console.WriteLine("Exiting thread...");
    });
    t.Start();

    // wait for any key press, and then exit the app
    Console.ReadKey();

    // tell the thread to stop
    lock (_runThreadLock)
    {
        _runThread = false;
    }

    // wait for the thread to finish
    t.Join();

    Console.WriteLine("All done.");    
}

简而言之；该线程检查一个 bool 标志，并在该标志为 true 时一直运行。与调用 Thread.Abort 相比，我更喜欢这种方法，因为它看起来更好更简洁。