int main()
{
??? /* 定義需要計算的日期 */
??
??? int year = 2008;
??? int month = 8;
??? int day1 = 8;
??? int m,day,day2;
??
??? if (2008%400==0||year%4==0 && year%100!=0)
?????? m==29;
??? else
?????? m==28;
??? switch(month)
??? {
??????? case 1:day=0;break;
??????? case 2:day=31;break;
??????? case 3:day=m+31;break;
??????? case 4:day=31+m+31;break;
??????? case 5:day=31+m+31+30;break;
??????? case 6:day=31+m+31+30+31;break;
??????? case 7:day=31+m+31+30+31+30;break;
??????? case 8:day=31+m+31+30+31+30+31;break;
??????? case 9:day=31+m+31+30+31+30+31+31;break;
??????? case 10:day=31+m+31+30+31+30+31+31+30;break;
??????? case 11:day=31+m+31+30+31+30+31+31+30+30;break;
??????? case 12:day=31+m+31+30+31+30+31+31+30+30+31;break;
??????? day2=day+day1
??????? printf("%d年%d月%d日這一天，是該年中的第%d天。"year,month,day1,day2);
???
???
?? return 0;