有没有大佬翻译一下 那节课没去看不懂了

天字：一：号

#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar code zixingma[]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};

sbit led_shi =P1^0;
sbit led_ge =P1^1;
uchar s,k;
void delay(uint mm)
{
uchar i,j;
for(i=0;i<mm;i++);
for(j=0;j<120;j++);


}
void to() interrupt 1
{
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
k--;
}
void main()
{
uchar shi,ge;
k=20;
P1=0xff;
s=0;
TMOD=0x01;
TH0=(65536-50000)/256;
TL0=(65536-50000)%256;
EA=1;
ET0=1;
TR0=1;
while(1)
{
P1=zixingma[shi];
led_shi=0;
led_ge=1;
delay(200);
P1=zixingma[ge];
led_shi=1;
led_ge=0;
delay(200);
if(k==0)
{
k=20;
s++;
shi=s/10;
ge=s%10;

}
}

}