一起来写程序共同进步持序发贴今天我们一起来写继承类　顺便换头像

#include<iostream>
#include<string>
using namespace std;
class Room;

class Student{               //学生类
private :
    int number;
    string name;
    int roomnumber;
public:
    void set(int a,string c){number=a;name=c;}
    int getnumber(){return number;}
    string getname(){return name;}
    void setroomnumber(Room&);
    int getroomnumber();
};

class Room{                    //寝室类
protected:                     //定义成保护类型,只让它的派生类可以访问，其它类不能访问数据成员   
    int kind;
    Student information;
public:

    void setkind(int a);
    int getkind();
    void instudent(Student &c);
    Student readstudent();
    friend void Student::setroomnumber(Room&);
};

//我们准备搞个高级寝室类 继承寝室类
class Senioroom:public Room{
private:
       string Roomkind;

public :
       //...........
};

int  Student::getroomnumber(){              //取得学生所在房间信息
       return roomnumber;
}
void Student::setroomnumber(Room&r){        //将房间信息传送到学生信息块
       roomnumber=r.kind;            
}

void Room::instudent(Student &c){   //将学生信息录入房间
       information=c;
}

Student Room::readstudent(){      //取得房间学生信息
      return information;
}
void  Room::setkind(int a){       //设置房间号
        kind=a;
}
int Room::getkind(){            //取得房间号
return kind;
}

void main(){
      string studentname;
      int studentnumber;
      getline(cin,studentname,'\n');
      cin>>studentnumber;                   //输入学生信息
     
      Student a;
       a.set(studentnumber,studentname);   //将学生信息录入

     Room room;
      room.instudent(a);
       room.setkind(235);
        a.setroomnumber(room);              //将房间信息传入到学生类中去
         cout<<"学生房间号码:"<<a.getroomnumber()<<endl;
          Student stu=room.readstudent();         //将房间学生信息读出
           cout<<stu.getname()<<endl<<stu.getnumber()<<endl;
              

}