#include <reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int
void Delay(uchar n);
void main()
{
while(1)
{
P0=0xff;
Delay(5000);
P0=0x00;
Delay(5000);
}
}
//function Delay100us();Delay 100us
void Delay(uchar n)
{
uint i;
while(n--)
for(i=0;i<80;i++);
}
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