等待一段时间而不阻塞主线程 [英] Wait for a while without blocking main thread

问题描述

我希望我的方法等待大约500毫秒，然后检查某些标志是否已更改.如何在不阻止应用程序其余部分的情况下完成此任务?

I wish my method to wait about 500 ms and then check if some flag has changed. How to complete this without blocking the rest of my application?

推荐答案

Thread.Sleep(500)将强制当前线程等待500ms.它可以工作，但是如果整个应用程序都在一个线程上运行，那不是您想要的.

Thread.Sleep(500) will force the current thread to wait 500ms. It works, but it's not what you want if your entire application is running on one thread.

在这种情况下，您将要使用Timer，如下所示:

In that case, you'll want to use a Timer, like so:

using System.Timers;

void Main()
{
    Timer t = new Timer();
    t.Interval = 500; // In milliseconds
    t.AutoReset = false; // Stops it from repeating
    t.Elapsed += new ElapsedEventHandler(TimerElapsed);
    t.Start();
}

void TimerElapsed(object sender, ElapsedEventArgs e)
{
    Console.WriteLine("Hello, world!");
}

如果希望计时器重复进行，则可以将AutoReset设置为true(或者根本不设置).

You can set AutoReset to true (or not set it at all) if you want the timer to repeat itself.

这篇关于等待一段时间而不阻塞主线程的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！