EM78P153S中断的应用，本程序以外部中断为例 上电时P50 输出高，在INT 引脚输入下降沿时进外部中断,P50 输出翻转一次。-Application of EM78P153S interrupt this program to external interrupt, for example On electric P50 output is high, the INT pin along the input falls into the external interrupt, fli