c++日历v1.0版本

#include<iostream>
# include<fstream>
#include<time.h>
#include<string>
#include<iomanip>
using namespace std;
void bangzhu();
void xianzaishijian();
void chakanrili();
int runnian(int);
int tianshu(int,int);
void shuru();
int shurupanduan(int ,int,int);
void shuchu();
void shuxiang(int);
void shuchushuxiang();
void dijitian();
void nianli();
int main()  //主函数
{
	int a;
	bangzhu();
	while(cin>>a)
	{if(a==0)
	break;
		switch(a)
		{//case 0: break;break;
		case 1: xianzaishijian();break;
		case 2: chakanrili();break;
        case 3: shuchushuxiang();break;
		case 4: dijitian();break;
		case 5: nianli();break;

		case 9: bangzhu();break;}
		
}
return 0;}

void xianzaishijian()    //输出现在时间以及当前月份日历
{ 
time_t t = time(NULL); 
struct tm   *local = localtime(&t); 
int year = local -> tm_year + 1900; 
int month = local -> tm_mon + 1; 
int day = local -> tm_mday;
int hour = local -> tm_hour; 
int minute = local -> tm_min; 
int second = local -> tm_sec; 

int d,y,m,l;
y=year;
m=month;
d=day;
int z=1;
l=shurupanduan(y, m,z);
 while(l==0)
 {cin>>y>>m;
l=shurupanduan(y,m,z);
}
	int q,s,i,sum=0;
     for(i=1905;i<y;i++)
	 {sum+=365;
       s=runnian(i);
         if(s==1)
           sum++;}
     for(i=1;i<m;i++)
	 {s=runnian(y);
switch(i)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
sum+=q;
}
	 if(s==1&&m>2)
        sum++;
switch(m)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
s=runnian(y);
if(s==1&&m==2)
q++;
int u,w;
u=sum%7;
w=3*u;
sum=sum+d;
d--;
d=sum%7;

cout <<"当前时间: "<<endl<<year<<"年"<<month<<"月"<<day<<"日"<<' '<<"星期"; 

switch(d)
{case 0:cout<<"日";break;
case 1:cout<<"一";break;
case 2:cout<<"二";break;
case 3:cout<<"三";break;
case 4:cout<<"四";break;
case 5:cout<<"五";break;
case 6:cout<<"六";break;
}
cout<<"  ";
shuxiang(year);
cout <<endl<<"     "<<hour<<":"<<minute<<":"<<second<<endl<<endl; 
cout<<" 日 一 二 三 四 五 六"<<endl;
for(i=1;i<=w;i++)
cout<<' ';
  for(i=1;i<=q;i++)
  {if(u==6)
  {cout<<fixed<<setw(2)<<i<<"              "<<endl;;
  u=-1;}
   else cout<<fixed<<setw(2)<<i<<' ';

   u++;}
 

} 
void bangzhu()                         //操作指令提示
{  cout<<"请输入以下指令"<<endl<<endl; 
	
	cout<<"    1.输出当前时间          " <<endl;
    cout<<"============================"<<endl;
	cout<<"    2.查看指定月份日历         "<<endl;
	cout<<"============================"<<endl;
	cout<<"    3.查看属相         "<<endl;
	cout<<"============================"<<endl;
	cout<<"    4,计算指定日期是一年中的第几天"<<endl;
	cout<<"============================"<<endl;
	cout<<"    5,显示输出任何一年的年历,并写入一文本"<<endl;
	cout<<"============================"<<endl;
	cout<<"    9.输出指令集"<<endl;
    cout<<"============================"<<endl;
    cout<<"    0.结束本程序          "<<endl ;
	cout<<"============================"<<endl;
}

int shurupanduan(int a,int b,int c=1)   //判断输入年月是否正确
{int l=1,q;
if(a<=0||b<=0||b>12||c<0)
{l=0;
cout<<"您的输入有误请重新输入"<<endl;}
switch(b)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
if(c>q)
{l=0;
cout<<"您的输入有误请重新输入"<<endl;}

return l;}

int runnian(int a) //判断是是否为闰年
{int l=0;
if((a%4==0&&a%100!=0)||(a%400==0))
l=1;
return l;
}

void chakanrili()   //查看指定月份日历
{cout<<"请输入年月中间用空格隔开如2013 1"<<endl;
int y,m,l;
cin>>y>>m;
int z=1;
l=shurupanduan(y,m,z);
 while(l==0)
 {cin>>y>>m;
l=shurupanduan(y,m,z);
}
	int q,s,i,sum=0;
     for(i=1905;i<y;i++)
	 {sum+=365;
       s=runnian(i);
         if(s==1)
           sum++;}
     for(i=1;i<m;i++)
	 {s=runnian(y);
switch(i)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
sum+=q;
}
	 if(s==1&&m>2)
        sum++;
switch(m)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
s=runnian(y);
if(s==1&&m==2)
q++;
int u,w;
u=sum%7;
w=3*u;
cout<<" 日 一 二 三 四 五 六"<<endl;
for(i=1;i<=w;i++)
cout<<' ';
  for(i=1;i<=q;i++)
  {if(u==6)
  {cout<<fixed<<setw(2)<<i<<"              "<<endl;;
  u=-1;}
   else cout<<fixed<<setw(2)<<i<<' ';

   u++;}
cout<<endl;}

void shuxiang(int y)//判断属相
{int p;
p=y%12;
switch(p) 
 {case 1:cout<<"鸡年";break;
 case 2:cout<<"狗年";break; 
 case 3:cout<<"猪年";break;
 case 4:cout<<"鼠年";break; 
 case 5:cout<<"牛年";break; 
 case 6:cout<<"虎年";break; 
 case 7:cout<<"兔年";break;
 case 8:cout<<"龙年";break;
 case 9:cout<<"蛇年";break;
 case 10:cout<<"马年";break;
 case 11:cout<<"羊年";break;
 case 12:cout<<"猴年";break;}
}
void shuchushuxiang() //输出属相
{
	cout<<"请输入年份"<<endl;
	int y;
	cin>>y;
	shuxiang(y);
	cout<<endl;
}
void dijitian()
{int y,m,d,sum=0,i,l,s,q;
cout<<"请输入年月日"<<endl;
cin>>y>>m>>d;
l=shurupanduan(y,m,d);
 while(l==0)
 {cin>>y>>m;
l=shurupanduan(y,m,d);
}
    for(i=1;i<m;i++)
	 {s=runnian(y);
switch(i)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
sum+=q;
}
	 if(s==1&&m>2)
        sum++;
	 sum=sum+d;
	 cout<<y<<"年"<<m<<"月"<<d<<"日是这一年中第"<<sum<<"天"<<endl;

}
void nianli()
{cout<<"请输入文本名称:"; 
char s[20];
cin>>s; 
ofstream outfile(s,ios::out);
cout<<"请输入年份"<<endl;
int y,m,l;
cin>>y;
for(m=1;m<=12;m++)
{
int z=1;
l=shurupanduan(y,m,z);
 while(l==0)
 {cin>>y>>m;
l=shurupanduan(y,m,z);
}
	int q,s,i,sum=0;
     for(i=1905;i<y;i++)
	 {sum+=365;
       s=runnian(i);
         if(s==1)
           sum++;}
     for(i=1;i<m;i++)
	 {s=runnian(y);
switch(i)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
sum+=q;
}
	 if(s==1&&m>2)
        sum++;
switch(m)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
s=runnian(y);
if(s==1&&m==2)
q++;
int u,w;
u=sum%7;
w=3*u;
outfile<<"   "<<y<<"年"<<m<<"月"<<endl;
outfile<<" 日 一 二 三 四 五 六"<<endl;
for(i=1;i<=w;i++)
outfile<<' ';
  for(i=1;i<=q;i++)
  {if(u==6)
  {outfile<<fixed<<setw(2)<<i<<"              "<<endl;;
  u=-1;}
   else outfile<<fixed<<setw(2)<<i<<' ';

   u++;}
outfile<<endl;
}
for(m=1;m<=12;m++)
{
int z=1;
l=shurupanduan(y,m,z);
 while(l==0)
 {cin>>y>>m;
l=shurupanduan(y,m,z);
}
	int q,s,i,sum=0;
     for(i=1905;i<y;i++)
	 {sum+=365;
       s=runnian(i);
         if(s==1)
           sum++;}
     for(i=1;i<m;i++)
	 {s=runnian(y);
switch(i)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
sum+=q;
}
	 if(s==1&&m>2)
        sum++;
switch(m)
{case 1:q=31;break;
case 2:q=28;break;
case 3:q=31;break;
case 5:q=31;break;
case 7:q=31;break;
case 8:q=31;break;
case 10:q=31;break;
case 12:q=31;break;
case 4:q=30;break;
case 6:q=30;break;
case 9:q=30;break;
case 11:q=30;break;}
s=runnian(y);
if(s==1&&m==2)
q++;
int u,w;
u=sum%7;
w=3*u;
cout<<"   "<<y<<"年"<<m<<"月"<<endl;
cout<<" 日 一 二 三 四 五 六"<<endl;
for(i=1;i<=w;i++)
cout<<' ';
  for(i=1;i<=q;i++)
  {if(u==6)
  {cout<<fixed<<setw(2)<<i<<"              "<<endl;;
  u=-1;}
   else cout<<fixed<<setw(2)<<i<<' ';

   u++;}
cout<<endl;
}
}