#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=day;break;
??? case 2:sum=day+31;break;
??? case 3:sum=day+31+28;break;
??? case 4:sum=day+31+28+31;break;
??? case 5:sum=day+31+28+31+30;break;
??? case 6:sum=day+31+28+31+30+31;break;
??? case 7:sum=day+31+28+31+30+31+30;break;
??? case 8:sum=day+31+28+31+30+31+30+31;break;
??? case 9:sum=day+31+28+31+30+31+30+31+31;break;
??? case 10:sum=day+31+28+31+30+31+30+31+31+30;break;
??? case 11:sum=day+31+28+31+30+31+30+31+31+30+31;break;
??? case 12:sum=day+31+28+31+30+31+30+31+31+30+31+30;break;
??? default:printf("gg");break;
??? }
???
??? 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日是該年的第%d天,year,month,day，sum");
???

?return 0;
}