友元函数

#include <iostream>
using namespace std;


class Student
{
private:
    char *name;
    int age;
public:
    char *score;
    void setname(char *m_name);
    void setage(int m_age);
    friend void print(Student *ptr);


};


int main()
{
    Student s1;
    s1.setname("xiaowang");
    s1.setage(15);
    
    print(&s1);
    //this->name;
    //Student *ptr  = new Student;
    //ptr->n = "xiaoli";
    //s1.print();
    return 0;
}


void Student :: setname(char *m_name)
{
    this->name = m_name;


}


void Student :: setage(int m_age)
{
    this->age = m_age;


}


void print(Student *ptr)
{
    cout<<ptr->name<<" "<<ptr->age<<endl;


}