#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;
??? /*
???? * 請使用switch語句，if...else語句完成本題
???? * 如有想看小編思路的，可以點擊左側任務中的“不會了怎么辦”
???? * 小編還是希望大家獨立完成哦~
???? */
??? 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:("一年中只有12個月~~");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日是改年第%d天",year,month,day,sum);
??????
?????? return 0;
??????
???????
}
???
???
???
???
???

?return 0;
}