#include <reg51.h>
#define u8 unsigned char
#define u16 unsigned int
sbit P23=P1^0;
sbit P24=P1^1;
sbit P25=P1^2;
sbit P28=P1^7;
sbit key=P3^1;
u16 duanma[]={0xc0,0xf9,0xa4,0xb0,0x99,
0x92,0x82,0xf8,0x80,0x90};
void delay(u16 num)
{
u16 x,y;
for(x=num;x>0;x--)
for(y=110;y>0;y--);
}
void main()
{u8 a,b;
a=5,b=5;
P0=duanma[a];
P2=duanma[b];
while(1)
{
if(P23==0)
{delay(10);
if(P23==0)
{P28=0;
while(!P28){if(P24==0)
{delay(10);
if(P24==0)
{
P28=1;
a++;
P0=duanma[a];
}
} while(!P24);
if(P25==0)
{delay(10);
if(P25==0)
{
P28=1;
b++;
P2=duanma[b];
}
}while(!P25);}
}
}
if(P24==0)
{
delay(10);
if(P24==0)
{
P28=1;
a=a-1;
P0=duanma[a];
}
}while(!P24);
if(P25==0)
{
delay(10);
if(P25==0)
{
P28=1;
b=b-1;
P2=duanma[b];
}
}while(!P25);
if(a==0|a==9|b==0|b==9)
{
key=0;
}
}
}
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