#include?<stdio.h>
int?main()?
{?
????/*?定義需要計算的日期?*/
????int?year?=?2008;
????int?month?=?8;
????int?day?=?8;
????int?a?=?30;
????int?b?=?31;
????int?sum?,?f;
????switch(month)
????{
????????case?1:sum=0;
????????break;
????????case?2:sum=b;
????????break;
????????case?3:sum=a+b;
????????brake;
????????case?4:sum=a+2*b;
????????break;
????????case?5:sum=2*a+2*b;
????????break;
????????case?6:sum=2*a+3*b;
????????break;
????????case?7:sum=3*a+3*b;
????????break;
????????case?8:sum=3*a+4*b;
????????break;
????????case?9:sum=3*a+5*b;
????????break;
????????case?10:sum=4*a+5*b;
????????break;
????????case?11:sum=4*a+6*b;
????????break;
????????case?12:sum=5*a+6*b;
????????break;
????????default;
????????printf("一年只有12個月哦~");
????????break:
????}
????if(year%4==0&&year%100!=0||year%400==0)
????????f=1;
????else
????????f=2;
????if(month>2)
????????sum=sum+day-f;
????else
????????sum+=day;
????printf("%d年%d月%d日是該年的第%d天。",year,month,day,sum);
	return?0;
}