通过编写程序，使系统中的交通灯部分进行正常工作。控制各路口交通灯的亮灭，实现道路的正常停车与放行。并在交通灯部分的数码管显示界面中显示各状态时间。-Through the preparation process, the system is part of the traffic lights work. Control the light off junction traffic lights to achieve the normal road parking and released. Part of the traffic lights and digital display interface shows the status of time.