#include

#define uchar unsigned char

uchar led[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

void delay(int a)

{

while(a--);

}

main()

{

uchar i;

while(1)

{

for(i=0;i

for(i=0;i

for(i=0;i

for(i=0;i

for(i=0;i

P0=0xff;P2=0x00;delay(10000);P0=0x00;P2=0xff;delay(10000);

}

for(i=0;i

P0=0x55;P2=0x55;delay(10000);P0=0xaa;P2=0xaa;delay(10000);

}

}

}