#include <stdio.h>
int main()
{
??? /* 定義需要計算的日期 */
??? int year = 2008;
??? int month = 8;
??? int day = 8;
??? /*
???? * 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~
???? */
???? int sum,i;
??? 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=183;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("一年當中只有12個月")；break;
??? }
??????? sum=sum+day;
??????? if((year%4==0&&year%100!=0)||year%400==0)
??????? i=0;
??????? else
??????? i=1;
??????? if(i==0&&month>2)
??????? sum++;
??????? printf("%d年%d月%d日是該年的第%d天"，year,month,day,sum);
??????? return 0;
}
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