two timer first timer in the window to retain a clock running when the clock alw...

代码说明：

两个计时器第一个计时器在窗口中保留一个时钟，程序运行时该时钟始终运行。另外一个计时器可配成用户指定的时间间隔触发。-two timer first timer in the window to retain a clock running when the clock always running. Another timer can be dubbed a user-specified time interval trigger.