#include <stdio.h>
int main()
{
/* 定义需要计算的日期 */
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;
}
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", year, month, day, sum);
return 0;
}