#include<iostream>

using namespace std;

class Time

{

      private:

      int hours,minutes,seconds;

      public:

 Time(void){};

      Time(int h,int m,int s);

      Time(Time &t);

      ~Time(){cout<<"the end"<<endl;}

      void settime();

      int  gettime();

      void add(Time&t1,Time&t2);

};

Time::Time(int h,int m,int s)

{

      hours=h;minutes=m;seconds=s;

      cout<<"现在的时间为："<<hours<<":"<<minutes<<":"<<seconds<<endl;

}

Time::Time(Time &t)

{

      hours=t.hours;minutes=t.minutes;seconds=t.seconds;

      cout<<"现在的时间为："<<hours<<":"<<minutes<<":"<<seconds<<endl;

}

void Time::settime()

{

     int h,m,s; 

     cin>>h>>m>>s;

     hours=h;

     minutes=m;

     seconds=s;

}

int Time::gettime()

{

   cout<<"现在的时间为："<<hours<<":"<<minutes<<":"<<seconds<<endl;

   return 0;

}

void Time::add(Time&t1,Time&t2) 

{

     Time total;

     const int perminutes=60;

     const int perhours=60;

     total.seconds=(t1.seconds+t2.seconds)%perminutes;

     total.minutes=(t1.minutes+t2.minutes+(t1.seconds+t2.seconds)/perminutes)%perhours;

     total.hours=(t1.hours+t2.hours+(t1.minutes+t2.minutes+(t1.seconds+t2.seconds)/perminutes)/perhours);

     cout<<"现在的时间为："<<total.hours<<":"<<total.minutes<<":"<<total.seconds<<endl;

     

}

int main()

{

    Time T;

    Time a(5,5,23);

    

    cout<<"请设置当前的时间："<<endl;

    a.settime();

    a.gettime();

    cout<<endl<<endl;

Time b(6,4,34);

cout<<endl<<endl;

T.add(a,b);

    system("pause");

    return 0;

}

还请提出点修改意见那大家，或者是扩充性的