Windows下的高精度计时和高频事件的产生 在开发 Windows 下的应用程序时，经常需要用的计时，尤其在一些对时间要求比较高的程序中，计时的精确性是很重要的，本文介绍了两种精确计时的方法，计时的精度可以达到ms级，而且可以认为它是精确的，可以在大多数情况下作为时间的基准。-under Windows precision timing and the selection of high-frequency events in the development of Windows applications, we often need to use the time, especially in some of the high demand on time the procedure, the accuracy of time is very important, this paper introduces two methods of precision timing, timing accuracy can be achieved ms level, but also that it is accurate, in most cases, as time benchmarks.