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=273;break;
case 11:sum=304;break;
case 12:sum=334;break;
default:printf("输入有误!");break;
}
sum+=day;
if(year%400==0||(year%4==0&&year%100!=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",year,month,day,sum);
return 0;
}
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