汽车尾灯控制电路，一共有七个状态，数电设计实验的作业，左转，右转，刹车，倒车，左转刹车，右转刹车，正常行驶。-Automobile taillight control circuit, a total of seven states, several electric design of the experiment operations, turn left, turn right, brake, reverse, turn left brake, right brake, normal dr