#include <iostream>
#include <string>
using namespace std;
class Advisor
{
int nootmeeting;
public:
Advisor(){ cout << “Advisor1 \n”; };
//Advisor(){ cout << “copy Advisor2 \n”; };
~Advisor(){ cout << “~Advisor;\n”;}
private:
};
class student
{
string name;
int semeterHours;
double averge;
public:
student(string pnname = “no name”) :name(pnname), semeterHours(0), averge(0){};
int getHours(){ return semeterHours; }
double aaverge(){ return averge; }
void display(){ cout << “name: “<<name<< ”  hours: ” << semeterHours << ”  averge = ” << averge<<“\n”; }
~student(){ cout << “~student \n”; };
private:
};
class GraStudent:public student
{
Advisor advisor;
int grade;
public:
GraStudent(const string& PN, Advisor& pp) :student(PN), advisor(pp), grade(0){};  //这里使用应用与不使用有什么区别？
~GraStudent(){ cout << “~GraStudent \n”; }
void display()
{
student::display();
cout << ”  Advisor: ” << grade << “\n”;
}
};
void f(Advisor& dd)
{
GraStudent rs(“deng”, dd);
rs.display();
rs.student::display();
}
int main()
{
Advisor ss;
f(ss);
}