C52单片机6位数码管时钟

#include <reg52.h>

# define uchar unsigned char

# define uint unsigned int

sbit wela =P2^7; //数码管位选信号

sbit dula =P2^6; //数码管段选信号

int time;

int W1,W2,W3,W4,W5,W6;

/*延时子函数*/

void delayms(uint time)

{

uint i;

for(;time>0;time--)

{

for(i=0;i<124;i++)

{;}

}

}

/*数码管显示子函数--不带小数点*/

void display (int num1,int num2) // num1为显示的位置，num2为要显示的数字0-9 {

uchar code wei[]={0xdf,0xef,0xf7,0xfb,0xfd,0xfe}; //数码管各位的码表,为低时选中某一位

uchar code duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,}; //段选0-9的码表，为低时某一段亮

P0=wei[num1-1];

wela=1;

wela=0;

switch(num2)

{

case 0: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 1: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 2: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 3: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 4: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 5: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 6: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 7: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 8: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

case 9: P0=duan[num2]; dula=1; dula=0; delayms(2); break;

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