检测红外探头的程序，如果连续5s内检测不到红外探头的信号，则程序重新开始！-infrared detection probe procedures, if for less than 5s detect infrared sensor signal, process re-started!

交通灯控制系统的FPGA设计与实现，红灯亮55s，黄灯亮5s，绿灯亮50s

用VC做一个背景颜色改变。前两秒黑屏，t=2s时出现红色方块，显示1s后消失，然后是0.5s的黑屏，出现绿色方块，显示1s-Using VC to be a background color changes. Two seconds before the black screen, t = 2s when the red box shows disappear after 1s, then the 0.5s in the black, green box appears, showing 1s