C#延时函数的使用说明

 

C#延时函数使用

在线程中如果需要延时,尽量不要使用Sleep()函数,这样会导致时间片切到别的线程中。

使用如下函数:

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

或者:

        //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);
        }

 

C#3个延时函数

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;
      }

以上为个人经验,希望能给大家一个参考,也希望大家多多支持编程宝库

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