main()
{int year,month,day,days;
int sum_day(int month,int day);
int leap(int year);
printf("please input year:\n");
scanf("%d",&year);
printf("please input month:\n");
scanf("%d",&month);
printf("please input month:\n");
scanf("%d",&day);
days=sum_day(month,day);
if(leap(year)>&&month>=3)days++;
printf("today is %dth day in this year!\n",days);
}
static int day_tab[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int sum_day(int month,int day)
{int i;
for(i=1;i<month;i++)
day=day+day_tab[i];
return day;
}
int leap(int year)
{int leap;
if(year%4==0&&year%100!=0llyear%400==0)leap=1;
else leap=0;
return leap;
}



错误显示在if(year%4==0&&year%100!=0llyear%400==0)leap=1;
的year%400的%上.
请问是哪里错了?

第九行代码 month应该改成day吧
第十二行代码多了一个大于号
倒数第四行代码if(year%4==0&&year%100!=0llyear%400==0)leap=1;中的ll不是字母 而是符号||
改正后的代码如下

/* Note:Your choice is C IDE */
#include "stdio.h"
main()
{int year,month,day,days;
int sum_day(int month,int day);
int leap(int year);
printf("please input year:\n");
scanf("%d",&year);
printf("please input month:\n");
scanf("%d",&month);
printf("please input day:\n");
scanf("%d",&day);
days=sum_day(month,day);
if(leap(year)&&month>=3) days++;
printf("today is %dth day in this year!\n",days);
}
static int day_tab[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int sum_day(int month,int day)
{int i;
for(i=1;i<month;i++)
day=day+day_tab[i];
return day;
}
int leap(int year)
{int leap;
if(year%4==0&&year%100!=0||year%400==0)leap=1;
else leap=0;
return leap;
}

第9.12行是我的疏忽。一晚没睡。精神不太好。一时看漏了。下次会注意的
至于你说的||还真是那么回事。我还以为是字母L。我现在去试下

[ 本帖最后由 ipk123 于 2010-12-3 10:18 编辑 ]

#include<stdio.h>
main()
{int year,month,day,days;
int sum_day(int month,int day);
int leap(int year);
printf("please input year:\n");
scanf("%d",&year);
printf("please input month:\n");
scanf("%d",&month);
printf("please input month:\n");
scanf("%d",&day);
days=sum_day(month,day);
if(leap(year)&&month>=3)days++;
printf("today is %dth day in this year!\n",days);
}
static int day_tab[13]={0,31,28,31,30,31,30,31,31,30,31,30,31};
int sum_day(int month,int day)
{int i;
for(i=1;i<month;i++)
day=day+day_tab[i];
return day;
}
int leap(int year)
{int leap;
if(year%4==0&&year%100!=0llyear%400==0)leap=1;
else leap=0;
return leap;
}


if(leap(year)>&&month>=3)days++;
多了一个">"号。在有的软件下需要加上#include<stdio.h>。