Task.Delay与DispatcherTimer?

本文介绍了Task.Delay与DispatcherTimer?的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述

我正在考虑将Task.Delay()用于不间断计时器，因为它更简单易读.

I'm considering use Task.Delay() for a non-stop timer, because it's more simple and readable.

由于我是.NET的新手，所以我认为这两个代码之间没有显着差异.您能告诉我它们之间的区别(如果有)吗?

As I'm new to .NET, I see no significant difference between the two codes. Can you show me the difference (if there is any) between them?

// Create variable at some place DispatcherTimer timer = new DispatcherTimer(); timer.Interval = TimeSpan.FromSeconds(5); timer.Tick += timer_Elapsed; timer.Start(); // Function other place void timer_Elapsed(object sender, EventArgs e) { //Do stuff }

vs

// Every thing inside a function async void TaskTimer() { while (true) { await Task.Delay(5000); // Do stuff } }

推荐答案

有两个主要区别:

Task.Delay方法将在个循环之间延迟指定的时间，而DispatcherTimer方法将在指定的循环时间开始一个新的循环.

Task.Delay具有更高的可移植性，因为它不依赖于绑定到特定UI的类型.

The Task.Delay approach will delay the specified amount of time between cycles, while the DispatcherTimer approach will start a new cycle on the specified cycle time.

Task.Delay is more portable, since it does not depend on a type tied to a specific UI.