找了一串流水灯代码,但看不太明白希望有讲解!(最好每行都有!)
#include<reg51.h>
void delay();
void main()
{
unsigned char output=0xfe;
while(1)
{
P1=output;
output=output<<1;
output=output|1;
if(output==0xff)output=0xfe;
delay();
}
}
void delay()
{
long i;
for(i=500000;i>=0;i--);
}