教练助手串口通信按键调试程序，用于实现辅助驾校教练对学员学车情况进行及时控制，防止学员学车出现意外情况。采用汇编语言编写，单片机采用89S51单片机进行控制。-Key assistant coaches to debug serial communication program for the realization of secondary school students car driving coaches on the control of the situation in time t