C＃如何在特定时间触发事件？ [英] C# How can I trigger an event at a specific time of day?

问题描述

我正在处理一个程序，需要在一天的某个小时删除一个文件夹（然后重新实例化），这个时间将由用户给出。

I'm working on a program that will need to delete a folder (and then re-instantiate it) at a certain hour of the day, and this hour will be given by the user.

小时很可能是在夜间，因为没有人正在访问该文件夹（在工作时间外）。有没有办法在那个特定的时间触发这个事件？

The hour will most likely be during the night, because that's when nobody is accessing the folder (it's outside working hours). Is there a way to trigger that event at that certain hour?

我知道计时器，但是有没有一个更简单的方法来做，没有一个计时器，勾选和检查看看是什么时间？

I know about timers, but is there an easier way to do this without a timer that ticks and checks to see what time it is?

编辑：也许我不够具体。我想触发一个方法来做某事，而不必首先在单独的可执行文件中编译它。此方法是作为Windows服务实现的较大类的一部分。所以这个服务不断运行，但是在一天的某个时间，它应该触发这个功能来删除文件夹。

EDIT: Maybe I wasn't specific enough. I want to trigger a method to do something, without having to first compile it in a separate executable. This method is part of a bigger class that is implemented as a Windows Service. So this service continuously runs, but at a certain time of day, it should trigger this function to delete the folder.

谢谢。

推荐答案

开箱即用。

不需要对这种工作进行编码 - 使用计划任务，他们已经在Windows中很长一段时间了。

No need for coding on this kind of job - use Scheduled Tasks, they have been in windows for a long time. You can kick off your program from this.

更新：（以下更新到问题）

Update: (following update to question)

如果您需要从已经运行的服务触发方法，请使用计时器并根据您的目标时间测试 DateTime.Now 。

If you need to trigger a method from an already running service, use a timer and test DateTime.Now against your target time.

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