计划任务以供将来执行 [英] Scheduling Task for future execution

问题描述

我查看了计时器类API，但找不到有关如何安排Task以便将来执行的信息. 使用Timer类，我可以安排线程以供将来执行，但是我需要安排Task. Task具有.Delay(...)方法，但是不确定延迟是否类似于调度.

I have looked at the Task and Timer class API's, but could not find information on how to schedule a Task for future execution. Using the Timer class, I can schedule threads for future execution, but I need to schedule Tasks. Task has .Delay(...) methods, but not sure delay is similar to scheduling.

编辑(说明):我想在x分钟后开始执行任务.

Edit(clarification): I want to start tasks after x minutes.

推荐答案

您应使用Task.Delay(内部使用System.Threading.Timer实现):

You should use Task.Delay (which internally is implemented using a System.Threading.Timer):

async Task Foo()
{
    await Task.Delay(TimeSpan.FromMinutes(30));
    // Do something
}

虽然执行了延迟" 没有线程被使用.当等待结束后，工作将按计划执行.

While the delay is "executed" there is no thread being used. When the wait ends the work after it would be scheduled for execution.

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