#include"iostream.h"
#include"iomanip.h"
#include"stdlib.h"
leapyear(int a)/*是否是闰年*/
{
if((a%4==0&&a%100!=0)||(a%100==0&&a%400==0))
return (1);
else return (0);
}
int aa[12]={31,28,31,30,31,30,31,31,30,31,30,31};
int cc[12]={31,29,31,30,31,30,31,31,30,31,30,31};
char bb[8][8]={"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
ww(int a,int b,int c)
{
int n=0,m=0,i,j,k=0;
for(i=1;i {
if(leapyear(i)==1)
m=m+366;
else m=m+365;
}
for(j=1;j {if(leapyear(c)==1) k=k+cc[j-1];
else k=k+aa[j-1];
}
n=(m+k+a)%7;
return n;
}
void yuefen(int m)
{
cout<<"最大天数是:";
if(m==2)
cout< else cout< }
void nianfen(int n)/*打印年份的日历*/
{
int i,j,k;
if(leapyear(n)==1)
{
for(j=1;j<=12;j++)
{
cout< cout<<"月份"< cout<<" 日"<<" 一"<<" 二"<<" 三"<<" 四"<<" 五"<<" 六"< for(i=0;i {
cout< }
for(k=1;k<=cc[j-1];k++)
{
cout< if((ww(1,j,n)+k)%7==0)
cout< }
cout< }
}
else
{
for(j=1;j<=12;j++)
{
cout< cout<<"月份"< cout< cout< for(i=0;i {
cout< }
for(k=1;k<=aa[j-1];k++)
{
cout< if((ww(1,j,n)+k)%7==0)
cout< }
cout< }
}
}
void nianyue(int n,int y)/*打印某年某月的月历*/
{
int i,k;
if(leapyear(n)==1)
{
cout<<" 日"<<" 一"<<" 二"<<" 三"<<" 四"<<" 五"<<" 六"< for(i=0;i {
cout< }
for(k=1;k<=cc[y-1];k++)
{
cout< if((ww(1,y,n)+k)%7==0)
cout< }
cout< }
else
{ cout< for(i=0;i {
cout< }
for(k=1;k<=aa[y-1];k++)
{
cout< if((ww(1,y,n)+k)%7==0)
cout< }
cout< }
}
void main()
{
int n,m;
int day,month ,year;
while(1)
{
cout<<"***********************************:"< cout<<"1查询某年某月某日是星期几"< <<"2是否为闰年"< <<"3查询某月的最大天数"< <<"4打印某年的全年日历"< <<"5打印某年某月的月历"< <<"6exit"< <<"***********************************:"< cout<<"请输入要操作的指令:"< cin>>n;
switch(n)
{
case 1:cout<<"请输入要查询的日期:";
cout<<"year:";
cin>>year;
cout< cin>>month;
cout< cin>>day;
cout<<"星期是:";
cout< switch(ww(day,month,year))
{
case 1:cout<<"星期一";break;
case 2:cout<<"星期二";break;
case 3:cout<<"星期三";break;
case 4:cout<<"星期四";break;
case 5:cout<<"星期五";break;
case 6:cout<<"星期六";break;
case 7:cout<<"星期日";break;
}
cout< case 2:cout<<"请输入要查询的年份:";
cin>>m;
if(leapyear(m)==1) cout<<"是闰年"< else cout<<"不是闰年，请返回重新输入"< break;
case 3:cout<<"请输入月份:";
cin>>m;
yuefen(m);break;
case 4:cout<<"请输入所要打印年份:";
cin>>m;
nianfen(m);break;
case 5:cout<<"请输入年份:";
cin>>n;
cout< cin>>m;
cout< nianyue(n,m);break;
case 6:exit(0);
}
}
}
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