最后if可以这样写吗
#include <stdio.h>
int main()
{
/* 定义需要计算的日期 */
int year = 2008;
int month = 8;
int day = 8;
int i,sum;//yiy,ery,sany,siy,wuy,liuy,qiy,bay,jiuy,shiy,shiyy,shieey;
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("错误");break;
}
sum+=day;
if( ( year%4==0 && year%100!=0 ) || year%400==0 )
i=1;
else
i=0;
if(month>2)
sum=sum+i;
printf("%d年%d月%d日是一年当中第%d天",year,month,day,sum);
return 0;
}