如果你想从一个ASP.NET Web应用程序中做到这一点，检查出的 Quartz.NET作业调度，很适合这样的事情。

If you want to do this from within an ASP.NET web application, check out the Quartz.NET Job Scheduler, it's perfect for this sort of thing.

否则，你可以运行一个单独的应用程序作为Windows服务与计时器，或一个控制台应用程序作为Windows的计划任务。

Otherwise you could run a separate application as Windows Service with a timer, or a console application as a Windows scheduled task.