include<reg52.h>

#define uchar unsigned char

#define uint unsigned int

sbit key=P1^0;

uchar num=0;

//共陰數碼管七段碼,需新增至16個

uchar code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d, 0x07,0x7f,0x6f,0x77};

void Delay1ms(uint i) //1ms延時程式

{

uint j;

for(;i>0;i--)

{

for(j=0;j<164;j++)

{;}

}

}

void main(void )//主程式

{

while(1)

{

if(key==0)//判斷按鍵是否按下

{

Delay1ms(10);//延時消抖

if(key==0)

{

while(key==0);//等待按鍵抬起

num++;

if(num==16)num=0;

}

}

P0=table[num];

}

}