c++友元函数

#include<iostream>
using namespace std;
class Student
{
public:
	Student(const char *name,int age,float score);
	friend void show(Student *pstu);//声明友元函数
private:
	const char* m_name;
	int m_age;
	float	m_score;
};
Student::Student(const char* name, int age, float score)
{
	m_name = name;
	m_age = age;
	m_score = score;
}
//友元函数定义
void show(Student* pstu)
{
	cout<<pstu-> m_name << endl;
	cout <<pstu-> m_age << endl;
	cout <<pstu-> m_score << endl;

}
int main()
{
	Student stu("张无忌",19,88.5);
	show(&stu);//调用友元函数
	Student* pstu = new Student("赵敏",19,55);
	show(&stu);
	delete pstu;
	return 0;
}