C++ 多继承

如有 老师 学生，他们都是人，老师类 学生类 继承 人 类。 但是如果学生兼职当老师，则也是老师。那么该人同时继承老师类，和学生类。

下面为上面的实现。

#include <iostream>
#include <string>
class Person
{
public:
    Person(std::string theName);
    void intorduce();
protected:
    std::string name;
};

class Teacher: public Person
{
public:
    Teacher(std::string theName, std::string theClass);
    void teach();
    void introduce();
protected:
    std::string classes;
};

class Student : public Person
{
public:
    Student(std::string theName, std::string theClass);

    void attendClass();
    void introduce();
protected:
    std::string classes;
};

class TeachingStudent : public Student,public Teacher   //  注意，  这里为 多继承
{
public:
    TeachingStudent(std::string theName, std::string classTeaching, std::string classAttending);

    void introduce();

};

Person::Person(std::string theName)
{
    name = theName;
}

void Person::intorduce()
{
    std::cout<<"大家好 我是"<< name<<"\n\n";
}

Teacher::Teacher(std::string theName, std::string theClass) : Person(theName)
{
    classes = theClass;
}

void Teacher::teach()
{
    std::cout << name <<"教 "<< classes <<"\n\n";
}

void Teacher::introduce()
{
    std::cout<<"大家好 我是"<<name <<"我教"<<classes<<"\n\n";
}

Student::Student(std::string theName,std::string theClass):Person(theName)
{
    classes = theClass;
}

void Student ::attendClass()
{
    std::cout<<name<<"加入"<<classes<<"学习\n\n";
}

void Student::introduce()
{
    std::cout<<"大家好我是"<<name<<"我在 "<<classes<<"学习\n\n";
}

TeachingStudent::TeachingStudent(std::string theName,
                                 std::string classTeaching,
                                 std::string classAttending)
                                 :Teacher(theName,classTeaching),Student(theName,classAttending)
{

}

void TeachingStudent::introduce()
{
    std::cout<<"大家好我是"<<Student::name<<"我教"<<Teacher::classes<<",";
    std::cout<<"同时我是"<<Student::classes<<"学习\n\n";
}
int main()
{
    Teacher teacher("小甲鱼","C++入门");
    Student student("迷途羔羊","C++入门");
    TeachingStudent teachingStudent("丁丁","C++入门","C++进阶");

    teacher.introduce();
    teacher.teach();
    student.introduce();
    student.attendClass();
    teachingStudent.introduce();
    teachingStudent.teach();
    teachingStudent.attendClass();

    return 0;
}