本程序是基于单片机的智能小车设计，小车能前进、后退、转弯或者沿某种物质轨道上走，当它偏离轨道时，又自动回到轨道上。-This procedure is based on the single-chip smart car design, car can move forward and backward, turn, or a substance along the walking track, and when it deviated from the track, then automati