[嵌入式]51单片机SCT15 LED交替闪烁

#include <STC15.H>
sbit CKEN1 =P1^0;
sbit CKEN2 =P1^1;
sbit CLK =P1^2;

void Delay(unsigned int i)
{
	unsigned char j;
	while(i)
	{
		i--;
		for (j=255;j>0;j--)
		{
		}
	}
}
void a(unsigned char red)
{
	P0=red;
  CKEN2 = 0;
	CLK = 0;
	CLK = 1;
	CKEN2 = 1;
	P0= 0xff;
}
void b(unsigned char red)
{
	P0=red;
  CKEN1 = 0;
	CLK = 0;
	CLK = 1;
	CKEN1 = 1;
	P0= 0xff;
}
void main()
{
	//unsigned char i,j;
	P0M0 = 0XFF;P0M1 = 0;
	P1M0 = 0XFF;P1M1 = 0;
	while (1)
	{
		b(0xff);
		a(0xff);
		Delay(1000);
		a(0xaa);
		b(0x55);
		Delay(1000);
		
		b(0xff);
		a(0xff);
		Delay(1000);
		a(0x55);
		b(0xaa);
		Delay(1000);
		
		b(0xff);
		a(0xff);
		Delay(1000);
		a(0);
		b(0);
		Delay(1000);
	
	}
	
}