#include<stdio.h>
bool is_run(int year){
    if((year%4==0&&year%100!=0)||(year%400==0))
        return true;
    else
        return false;
}
int main(){
    int year,month,day;
    int day0;
    while(scanf("%d/%d%/%d",&year,&month,&day)!=EOF){
        switch(month){
        case 1:
            day0=0;
            break;
        case 2:
            day0=31;
            break;
        case 3:
            day0=59;
            break;
        case 4:
            day0=90;
            break;
        case 5:
            day0=120;
            break;
        case 6:
            day0=151;
            break;
        case 7:
            day0=181;
            break;
        case 8:
            day0=212;
            break;
        case 9:
            day0=243;
            break;
        case 10:
            day0=273;
            break;
        case 11:
            day0=304;
            break;
        case 12:
            day0=334;
            break;
        }
        day0=day0+day;
        if(is_run(year))
            day0=day0+1;
        printf("%d\n",day0);
    }
    return 0;
}
        

1
if(is_run(year))
             day0=day0+1;
这个，如果输入的是1 月或者是2月，就没有必要+1了

2
没有对输入的月 也日的数范围进行检测？

多谢指导！！
 我太大意了!
肯能是编程太少了，考虑总是不全面！
呵呵