说明：  这是用PIC16C72的量产的电动自行车控制器的源代码，我反汇编后，花了2个月的时间，解释出几乎99％以上的程序的含义，供大家参考。
(This is the PIC16C72 by the mass production of electric bicycle controller source code, I am anti-compiled spent two months to explain almost 99 percent more than the meaning of the procedure for reference.)