如何用单片机AT89S52的p2口控制八盏灯依次点亮一盏的程序啊？

#include #include #define uchar unsigned char #define uint unsigned int sbit led1=P0^0; sbit beep=P1^0; void delay(uint); //----------主函数------------- void main() { while(1) { uchar temp; temp=0xfe; //P0=temp; //delay(500); while(