#include

typedef unsigned char uint8;

typedef unsigned int uint16;

sbit anjian = P1^0; //按鍵位

void delay(uint16 h) //延時程式

{

while(h--);

}

main()

{ uint8 k = 0 , i = 0;

P0 = 0xff;

anjian = 1;

while(1)

{

P0 = ~(1

if(anjian == 0)

{

delay(200);

if(anjina == 0) i++;

if(i == 3)

i = 0;

}

switch(i)

{

case 0: delay(10000);break;

case 1: delay(20000);break;

case 2: delay(20000); break;

}

if(k==8) k=0;

}

}