智能循迹小车程序，由三路红外对管，四路pwm控制-Intelligent tracking car program, by the three-way infrared tube, four pwm control

这是基于四路红外发射/接收管对的智能循迹（跟踪黑线的路线行走）小车的51单片机C语言程序-This is based on quad infrared transmitting/receiving tube of intelligent tracking (tracking black line walking) car 51 microcontroller C language program

四路红外循迹小车程序The four infrared tracking car program(The four infrared tracking car program)