c++之this指针做参数实现对象间的交互实例

#include <iostream>

using namespace std;

class Student; //Student类声明

class Teacher{

public:

void educate(Student* ps);

void reply(const string& answer){

m_answer = answer;

}

private:

string m_answer;

};

class Student{

public:

void ask(const string& question, Teacher* pt){

cout << "问题:" << question << endl;

pt -> reply("不知道!");

}

};

inline void Teacher:: educate(Student* ps){

ps -> ask("什么是this指针?", this);

cout << "答案:" << m_answer << endl;

}

int main(void){

Teacher t;

Student s;

t.educate(&s);

return 0;

}