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#include<p89v51rx2.h> void delay(unsigned int dela){ unsigned int i , j; for(i=0; i<=10000; i++) for(j=0; j<=dela; j++); } void main(){ while(1){ led1=0; led2=1; led3=0; led4=1; delay(10); led1=1; led2=0; led3=1; led4=0; delay(10); } }
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