第三章第七题（4）

#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() const{cout<<num<<" "<<score<<endl;}private:int num;float score;};int main(){Student stud(101,78.5);const Student *p=&stud;p->display();stud.change(101,80.5);p->display();return 0;}