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#include<AT89X52.h>
#define uint unsigned int;
#define uchar unsigned char;
uint x,y,z;
uint num;
sbit duan=P2^7;
sbit wei=P2^6;
uchar code table[]={
0x3f,0x06,0x5b,0x4f,
0x66,0x6d,0x7d,0x07,
0x7f,0x6f,0x77,0x7c,
0x39,0x5e,0x79,0x71};
void delay(uint z)
void display(uchar bai,uchar shi,uchar ge);
void main()
{
while(1)
{
for(num=0,num<999,num++)
{
bai=num/100;
shi=num%100/10;
ge=num%10;
display(uchar bai,uchar shi,uchar ge)
}
}
}
void display(uchar bai,uchar shi,uchar ge)
{
duan=1;
P2=table[bai];
duan=0;
P2=0xff;
wei=1;
P2=0xfe;
wei=0;
delayms(100);
duan=1;
P2=table[shi];
duan=0;
P2=0xff;
wei=1;
P2=0xfd;
wei=0;
delay(100);
duan=1;
P2=table[ge];
duan=0;
P2=0xff;
wei=1;
P2=0xfb;
wei=0;
delay(100)
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
[此贴子已经被作者于2009-11-26 21:53:38编辑过]
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