#include <reg51.h>
sbit LED0=P0^0;
sbit LED1=P0^1;
sbit ZD=P1^0;
void delay_ms(unsigned int x)
{
unsigned int i;
for(i=0;i<x;i++);
}
void main()
{
ZD=1;
LED0=0;
LED1=1;
while(1)
{
LED0=~LED0;
if(ZD==1)
{ LED1=1;}
else
{
LED1=0;
delay_ms(10);
}
}
}
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