单片机C语言编程：让8个LED流水灯以0.2s时间间隔从左到右依次点亮然后重复实现

#include #include void delay(unsigned int z ); void main() { unsigned int a; unsigned char b=0xfe; for(a=0;a<8;a++) { P1=b;//P1口接8个LED灯 delay(200); b=_crol_ (b,1); } } vo