#include <stdio.h>
int Year,Month,Day,week_day;
double Days_interval;//不包括那一月的间隔天数
int main()
{
printf("请输入年月日:");
scanf("%d%d%d",&Year,&Month,&Day);
double Days_Interval();//总天数间隔
int SX();//生肖;
int Month_days();//判断那个月有多少天
int Week_day();//每月1号是星期几
void print();
return 0;
}
double Days_Interval()//计算总天数间隔
{
int year=1900,month=1;
double Days_Interval=0;
for(year=1900;year<Year;year++)
{
if ((Year % 4 == 0 && Year %100 != 0) || (Year % 400 == 0))
{
Days_Interval+=366;
}
else
{
Days_Interval+=365;
}
}
for(month=1;month<Month;month++)
{
switch(month)
{
case 1:Days_Interval+=31;break;
case 2:if((Year % 4 == 0 && Year %100 != 0) || (Year % 400 == 0))
{
Days_Interval+=29;
}
else
{
Days_Interval+=28;
}break;
case 3:Days_Interval+=31;break;
case 4:Days_Interval+=30;break;
case 5:Days_Interval+=31;break;
case 6:Days_Interval+=30;break;
case 7:Days_Interval+=31;break;
case 8:Days_Interval+=31;break;
case 9:Days_Interval+=30;break;
case 10:Days_Interval+=31;break;
case 11:Days_Interval+=30;break;
case 12:Days_Interval+=31;break;
}
Days_interval=Days_Interval;
Days_Interval+=Day;
}
int Month_days()//判断这个月有多少天
{
if(Month==2)
{
if((Year % 4 == 0 && Year %100 != 0) || (Year % 400 == 0))
Month_days=29;
else Month_days=28;
}
else if(Month==1||Month==3||Month==5||Month==7||Month==8||Month==10||Month==12)
Month_days=31;
else Month_days=30;
return 0;
}
int Week_day()//计算每月1号是星期几
{
Days_interval+=1;
week_day=Days_interval%7;
return (week_day);
}
int SX()//判断生肖
{
int x;
x=(Year-1900)%12;
switch(x)
{
case 0:printf("%d年是鼠年",Year);break;
case 1:printf("%d年是牛年",Year);break;
case 2:printf("%d年是虎年",Year);break;
case 3:printf("%d年是兔年",Year);break;
case 4:printf("%d年是龙年",Year);break;
case 5:printf("%d年是蛇年",Year);break;
case 6:printf("%d年是马年",Year);break;
case 7:printf("%d年是羊年",Year);break;
case 8:printf("%d年是猴年",Year);break;
case 9:printf("%d年是鸡年",Year);break;
case 10:printf("%d年是狗年",Year);break;
case 11:printf("%d年是猪年",Year);break;
}
return 0;
}
void print()
{
int i=1;
print("一 二 三 四 五 六 日 \n");
for(i=1;i<week_day;i++)
printf("\t");
for(i=1;i<Month_days;i++)
{
printf("%4d",i);
week_day++;
if (week_day%7==0&&i<=Month_days)
printf("\n");
}
}