僅供參考，遺漏了switch后面的{ }，“第%d天",year”中的逗號（，）誤用了中文格式

#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;/*sum是總天數(shù)*/
??? if(year%4==0||year%400==0)
??? {
??????? switch(month)
??{
??????????? case 1:sum=day;break;
??????????? case 2:sum=31+day;break;
??????????? case 3:sum=60+day;break;
??????????? case 4:sum=91+day;break;
??????????? case 5:sum=121+day;break;
??????????? case 6:sum=152+day;break;
??????????? case 7:sum=182+day;break;
??????????? case 8:sum=213+day;break;
??????????? case 9:sum=244+day;break;
??????????? case 10:sum=274+day;break;
??????????? case 11:sum=305+day;break;
??????????? case 12:sum=335+day;break;
???default:break;
??}
??? }
??? else
??? {
??????? switch(month)
??{
??????????? case 1:sum=day;break;
??????????? case 2:sum=31+day;break;
??????????? case 3:sum=61+day;break;
??????????? case 4:sum=92+day;break;
??????????? case 5:sum=122+day;break;
??????????? case 6:sum=153+day;break;
??????????? case 7:sum=183+day;break;
??????????? case 8:sum=214+day;break;
??????????? case 9:sum=245+day;break;
??????????? case 10:sum=275+day;break;
??????????? case 11:sum=306+day;break;
??????????? case 12:sum=336+day;break;
???default:break;
??}
??? }
??? printf("%d年%d月%d日是該年的第%d天",year,month,day,sum);
?return 0;
}