用静态控件可实现计数的动态变化，数码管的数字显示-Static control can be realized with the dynamic changes in counting, digital control of the digital display

利用静态控件，显示数码管的数字，可大可小，可以设置小数位，不同前景色背景色。-The use of static control, digital display digital tube, big or small, you can set the number of decimal places, different foreground color to the background color.