#include <stdio.h>
int main()
{
int year = 2008;
int month = 8;
int day = 8;
int sum,flag;
switch(month)
case 1:sum=0;
break;
case 2:sum=31;
break;
case 3:sum=59;
break;
case 4:sum=90;
break;
case 5:sum=120;
break;
case 6:sum=151;
break;
case 7:sum=181;
break;
case 8:sum=212;
break;
case 9:sum=243;
break;
case 10:sum=271;
break;
case 11:sum=304;
break;
case 12:sun=334;
break;
default:printf("一年只有12个月")；
break;
sum=sum+day;
if(year%400==0)
flag=1;
else
flag=0;
if(flag==1&&month>2)
sum++;
printf("%d年%d月%d日是该年的第%d天\n",year,month,day,sum);
return 0;
}
