一个CStatic的子类，模仿LED数码管的显示方式，增加了界面的丰富性，提供源码，适用于初学者。-a CStatic child class, copying of digital LED display, increase the richness of the interface, providing the source code, apply to beginners.

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.