#include <reg51.h>
#define uint unsigned int
#define uchar unsigned char
void delay(uint z);
void main()
{
while(1)
{
P3=0xde;
delay(800);
P3=0xff;
delay(500);
P3=0x00;
delay(800);
P3=0xff;
delay(500);
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=100;y>0;y--);
}
改那就行了
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