VB自身提供的Timer控件的定时精度太差！补充一个我认为很精确的定时方法，该方法可以 真正精确到毫秒级!-VB own Timer control of the timing accuracy bad! I think that added a very precise timing, the method can really accurate to the millisecond!

VB.NET 计时器 计时器服务依赖于加载 Timer 类的主机的系统日期。-VB.NET timer timer services dependent on the loading Timer class mainframe systems date.