秒表暂停后，百位和十位的数码管没有显示，怎么弄啊
#include<reg52.h>
#define uchar unsigned char
#define uint unsigned int
uchar bai,shi,ge;
uint a;
sbit dula=P2^6;
sbit wela=P2^7;
sbit key1=P3^4;
sbit d1=P1^0;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void display(uchar bai,uchar shi,uchar ge);
void init();
void delay(uint z);
void main()
{
init(); //初始化子程序
while(1)
{
if(key1==0)
{
delay(5); //按下去，延时5毫秒
if(key1==0)
{
d1=0;
TR0=0;
while(!key1);
delay(5); //接通到松开，持续5毫秒
while(!key1);
}
display(bai,shi,ge);
}
else
{
d1=1;
TR0=1;
}
display(bai,shi,ge);
}
}
void delay(uint z)
{ //延时子程序
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
void display(uchar bai,uchar shi,uchar ge) //三位数的显示子程序
{
dula=1;
P0=table[bai];
dula=0;
P0=0xff;
wela=1;
P0=0xfe;
wela=0;
delay(5);
dula=1;
P0=table[shi];
dula=0;
P0=0xff;
wela=1;
P0=0xfd;
wela=0;
delay(5);
dula=1;
P0=table[ge];
dula=0;
P0=0xff;
wela=1;
P0=0xfb;
wela=0;
delay(5);
}
void init() //初始化子程序
{
TMOD=0x01;
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
EA=1;
ET0=1;
TR0=1;
}
void timer0() interrupt 1 //定时器0中断子程序，延时10毫秒
{
TH0=(65536-10000)/256;
TL0=(65536-10000)%256;
a++;
if(a==1000)
a=0;
bai=a/100;
shi=a%100/10;
ge=a%10;
} |
楼主
