我这样结果对了，为什么提交却不正确！
#include <stdio.h>
int main()
{
/* 定义需要计算的日期 */
int year = 2008,month = 8,day = 8,sum=0;
switch(month-1)
{case 11:sum+=30;
case 10:sum+=31;
case 9:sum+=30;
case 8:sum+=31;
case 7:sum+=31;
case 6:sum+=30;
case 5:sum+=31;
case 4:sum+=30;
case 3:sum+=31;
case 2:{if(year%4==0&&year%100!=0||year%400==0)sum+=29;
else sum+=28;}
case 1:sum+=31;}
sum+=day;
printf("%d",sum);
return 0;
}
