日历
//
// main.c
// app日历
//
// Created by 张云江 on 15/12/24.
// Copyright © 2015年 lkjy. All rights reserved.
//
#include <stdio.h>
int main(int argc, const char * argv[]) {
int year,sum,sum1=0,sum2=0,sum3=0,month,a,sum4;
int year1,month1,day1;
printf("请输入年");
scanf("%d",&year1);
printf("请输入月");
scanf("%d",&month1);
printf("请输入日");
scanf("%d",&day1);
if (year1<1900||month1>12||month1<=0||day1>31||day1<=0)
{
printf("输入错误\n");
return 0;
}
for (year=1900; year<year1; year++)
{
if ((year%4==0&&year%100!=0)||(year%400==0))
{
sum1=sum1+366;
}
else
sum1+=365;
}
//printf("%d\n",sum1);
for (month=1;month<month1; month++)
{
if (month==4||month==6||month==9||month==11)
{
sum2+=30;
}
else if (month==2)
{
if (((year%4==0&&year%100!=0)||year%400==0))
{
sum2+=29;
}
else
{
sum2+=28;
}
}
else
{
sum2+=31;
}
}
//printf("%d\n",sum2);
sum3=day1;
// printf("%d\n",sum3);
sum=sum1+sum2+sum3;
sum4=sum1+sum2;
printf("%d\n",sum);
switch (sum%7)
{
case 0:
{
printf("当前日期为星期天\n");
}
break;
case 1:
{
printf("当前日期为星期一\n");
}
break;
case 2:
{
printf("当前日期为星期二\n");
}
break;
case 3:
{
printf("当前日期为星期三\n");
}
break;
case 4:
{
printf("当前日期为星期四\n");
}
break;
case 5:
{
printf("当前日期为星期五\n");
}
break;
case 6:
{
printf("当前日期为星期六\n");
}
break;
default:
printf("错误");
break;
}
//第二天做的部分
int i,j=1;
if (month1==4||month1==6||month1==9||month1==11)
{
a=30;
}
else if (month==2)
{
if (((year%4==0&&year%100!=0)||year%400==0))
{
a=29;
}
else
{
a=28;
}
}
else
{
a=31;
}
printf("日\t一\t二\t三\t四\t五\t六\n");
while (j<=sum4%7+1)
{ if(sum4%7+1==7)
break;
else
printf("\t");
j++;
}
for (i=1;i<=a;i++)
{
printf("%d\t",i);
if ((i+sum4)%7==6)
{
printf("\n");
}
}
printf("\n");
return 0;
}
