主程序按照一定的顺序调用 1～6子程序，然后把生成的缓存内容写入串口。 接收到数据送给7的子程序分析即可。 -The main program according to the order of 1 ~ 6 subroutine call, and then cache the generated content into the serial port. Receive the data analysis to the 7 to the subroutine.