C++习题-使用指针操作[3.7.3]

#include <iostream>
using namespace std;

class Student
{
    public:
    Student(int n,float s):num(n),score(s){}
    
    void change(int n,float s)
    {
        num = n;
        score = s;
    }
    
    void display()
    {
        cout << num << " " << score << endl;
    }
    
    private:
    int num;
    float score;
};

int main()
{
    Student stud(101,78.5);
    Student *p = &stud;
    p->display();
    p->change(101,80.5);
    p->display();
    
    system("pause");
    return 0;
}