1 public static void Delay(int mm)
 2 {
 3     while (DateTime.Now.AddMilliseconds((double)mm) > DateTime.Now)
 4     {
 5         Thread.Sleep(100);这里设置1到100都可以
 6         Application.DoEvents();
 7     }
 8 }
 9 
10 this.Delay(2000000000);这里在函数类进行调用即可