test

#include <at89x52.h>
char seg7[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};
sbit led0=P3^0;
sbit led1=P3^1;
sbit led2=P3^2;
sbit led3=P3^3;
sbit btn1=P3^4;
sbit btn2=P3^5;
int k=0;
void delay_1ms(int k)
{
int i,j;
for(i=0;i<k;i++)
for(j=0;j<114;j++)
     ;
}
void init()
{
int i;
for(i=0;i<2;i++)
{
P1=0X00;delay_1ms(1000);
P2=0X00;delay_1ms(1000);
led0=0;led1=0;led2=0;led3=0;P0=0x00;delay_1ms(1000);
P1=0XFF;delay_1ms(1000);
P2=0XFF;delay_1ms(1000);
led0=1;led1=1;led2=1;led3=1;P0=0xFF;delay_1ms(1000);
}
P2=seg7[0];
}
main()
{
 init();
 while(1)
 {
if(btn1==0)
{
delay_1ms(20);while(btn1!=1);delay_1ms(20);
k=k+1;
if(k>9)k=0;
P2=seg7[k];delay_1ms(20);
}
if(btn2==0)
{
delay_1ms(20);while(btn2!=1);delay_1ms(20);
k=k-1;
if(k<0)k=9;
P2=seg7[k];delay_1ms(20);
}
 }
}