说明：  项目测试结束时都会有结果显示，除了在程序界面上显示外，同时也在硬件上显示。本子程序除了在程序界面上显示外，硬件上用12条IO数字线控制74HC373驱动LED显示，LED用的是共阴极双色（红色和绿色）指示灯，同时附上原理图，
(The end of the project testing results show that, in addition to displayed in the program interface, as well as the hardware on display. Book program in addition to In addition, the hardware is displayed in the program interface with 12 IO digital line control 74HC373-driven LED display, LED with common cathode two-color (red and green) indicator, together with schematic,)