#include <stdio.h>
int main()
{
??? /* 定義需要計(jì)算的日期 */
??? int year = 2008;
??? int month = 8;
??? int day = 8;
??? /*
???? * 請(qǐng)使用swtich語句，if...else語句完成本題
???? * 如有想看小編思路的，可以點(diǎn)擊左側(cè)任務(wù)中的“不會(huì)了怎么辦”
???? * 小編還是希望大家獨(dú)立完成哦~
???? */
??? 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("一年只有12個(gè)月");break;
??? }
??? sum=sum+day;
??? if((year%4==0&&year%100!=0)||year%400==0)
?????? flag=1;
??? else
??????? flag=0;
??? if(flag=1&&month>2)
?????? sum++;
??? printf("%d年%月%日是該年的第%d天"，year,month,day,sum)；
?? ?return 0;
}