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traffic-lightr
- 课堂实验交通灯源码,交叉路口上状态切换次序为(复位)红红-红绿-红黄-绿红-黄红-红绿。南北和东西分别对称。-Classroom experiment traffic light source, crossing state switch on the order (restoration) red red red, green, yellow and red--green red-yellow, red and green- North and south and things were sy