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#include<reg52.h>
#define uint unsigned int
#define uchar unsigned char
sbit P27=P2^7;
sbit K1=P3^2;
uchar num;
uchar code table[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xf8,0x80,0x90,0x88,0x83,0xC6,0xA1,0x86,0x8E};
void delay(uint z);
void main()
{
P1=0xff;
while(1){
if(K1==0){
delay(20);
if(K1==0){
num++;
if(num==16){
num=0;
}
while(!K1);
}
}
P27=0;
P0=table[num];
}
}
void delay(uint z)
{
uint x,y;
for(x=z;x>0;x--)
for(y=110;y>0;y--);
}
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