#include

void Js_Scan(void);

void delay(int x);

sbit key=P2^2;

int code LED_Num[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; //數碼管掃描陣列，共陰極

//int code LED_Num[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90}; //共陽極

int i=0,flag=0;

void main()

{

if(key==0&&flag==0)

{

i++;

flag=1;

}

if(key==1&&flag==1)

{

flag=0;

}

Js_Scan();

}

void Js_Scan() //數碼管掃描函式

{

uchar j; //定義j資料型別

for(j=0;j

{

P1=0x00;P0=LED_Num[i];delay(1); //掃描顯示秒錶小數位，點不顯示，稍作延時

}

}

void delay(int x) //延時函式，防止數碼管顯示不穩定

{

int k;

while(x--)

for(k=0;k

}