用C语言编写程序,计算2003年的某月某日是当年的第多少天?是星期几?已知2003年元旦是星期三。

Question

如题所述

Answer 1

把每个月的月份放到一个数组里，然后根据月份，把除这个月之外所有以前的月份的天数相加，再加上这个月的第几天，加3，然后对7取模，0就是周日，其余是几就是是周几了。

Answer 2

#include "stdafx.h"
#include "stdio.h"
void main()
{
int month,day,n,week;
printf("please input month:\n");
scanf("%d",&month);
printf("please input day:\n");
scanf("%d",&day);
switch(month)
{
case 1:
n=day;
printf("the day number is %d\n",n);
break;
case 2:
n=day+31;
printf("the day number is %d\n",n);
break;
case 3:
n=day+59;
printf("the day number is %d\n",n);
break;
case 4:
n=day+90;
printf("the day number is %d\n",n);
break;
case 5:
n=day+120;
printf("the day number is %d\n",n);
break;
case 6:
n=day+151;
printf("the day number is %d\n",n);
break;
case 7:
n=day+181;
printf("the day number is %d\n",n);
break;
case 8:
n=day+212;
printf("the day number is %d\n",n);
break;
case 9:
n=day+243;
printf("the day number is %d\n",n);
break;
case 10:
n=day+273;
printf("the day number is %d\n",n);
break;
case 11:
n=day+304;
printf("the day number is %d\n",n);
break;
case 12:
n=day+334;
printf("the day number is %d\n",n);
break;
default:
printf("error,please check\n");
}
week=(n+1)%7+1;
printf("today is week %d",week);
}
//数据正确性验证程序自己做吧，否则比如你输入一个2月50号会出错本回答被网友采纳

Answer 3

要学软件，这些东西应该自己解决，稍稍想一想就会有结果的，
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