C#延时函数

    //Delay function
    public static void Delay(int milliSecond)
    {
        int start = Environment.TickCount;
        while (Math.Abs(Environment.TickCount - start) < milliSecond)
        {
            Application.DoEvents();
         }
    }

        //Delay us   Create a waitable timer
        [DllImport("kernel32.dll")]
        public static extern int CreateWaitableTimer(int lpTimerAttributes,
                                     bool bManualReset, int lpTimerName);
 
        public static void UsDelay(int us)
        {
            long duetime = -10 * us;
            int hWaitTimer = CreateWaitableTimer(NULL, true, NULL);
            SetWaitableTimer(hWaitTimer, ref duetime, 0, NULL, NULL, false);
            while (MsgWaitForMultipleObjects(1, ref hWaitTimer, false, Timeout.Infinite, 
                    QS_TIMER)) ;
            CloseHandle(hWaitTimer);
        }

public static void Delays(int DelayTime = 100)
        {
            int time = Environment.TickCount;
            while (true)
            {
                if (Environment.TickCount - time >= DelayTime)
                {
                    break;
                }
                Application.DoEvents();
                Thread.Sleep(10);
            }
        }
 
        public static void Delay1(int milliSecond)
        {
            int start = Environment.TickCount;
            while (Math.Abs(Environment.TickCount - start) < milliSecond)
            {
                Application.DoEvents();
            }
        }
 
        //延时程序 秒
        public static bool Delay2(int delayTime)
        {
            DateTime now = DateTime.Now;
            int s;
            do
            {
                TimeSpan spand = DateTime.Now - now;
                s = spand.Seconds;
                Application.DoEvents();
            }
            while (s < delayTime);
            return true;
        }