#include?<stdio.h>
int?main()?
{?
????/*?定義需要計算的日期?*/
????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;
????????default:printf("一年有十二個月");break;
????}
????sum=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日是該年中的第%d天",year,month,day,sum);
????return?0;
????/*
?????*?請使用switch語句，if...else語句完成本題
?????*?如有想看小編思路的，可以點擊左側(cè)任務中的“不會了怎么辦”
?????*?小編還是希望大家獨立完成哦~
?????*/