某211重点大学优秀毕业论文范文，可以学习研究使用-A 211 key universities Van outstanding dissertation, you can study the use of

简易交通灯，程序运行初始需要设计时间，控制南北向，东西向的红绿灯时间间隔。-Simple traffic lights, the need to run the initial design time to control the north-south, east-west time interval of the traffic lights.