基于STC89C51单片机小车实现智能循迹前进功能，此代码为精简升级版，经本人多次改进，适合新手作为模板在此基础上进行功能升级。-The intelligent tracking based on the SCM STC89C51 car forward this code to streamline the upgrade version, after I repeatedly improved, suitable for novice as a template based on featu