说明：  小车避障的控制程序，三输入（左右距离之差、前方障碍物距离、与目的地之间偏角）一输出（小车拐角）实现对小车的模糊控制
(Car obstacle avoidance control program, three input (about the difference between the distance, distance of obstacles ahead, and the Angle between the destination) the output (the car corners) to realize the fuzzy control of the car)