/********** Use if statement to control the lighting of 8-bit LED of P0 port--51 single-chip microcomputer supporting development board *****************/
Reference address：Use if statement to control the lighting of 8-bit LED of P0 port
//Example 19: Use if statement to control the flow direction of 8-bit LED of port P0
#include
sbit K5=P1^4; //Define S1 as P1.4
sbit K6=P1^5; //Define S2 as P1.5
/*****************************
Function: Main function
********************************/
void main(void)
{
while(1)
{
if(K5==0) //If button S1 is pressed
P0=0x0f; //The high four-bit LED of port P0 lights up
if(K6==0) //If button S2 is pressed
P0=0xf0; //The low four-bit LED of port P0 lights up
}
}
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