C++ 类与继承实例：实现老师、学生和研究生类的关系

#include #include using namespace std;

class Teacher { public: string name; int age;

Teacher(string n, int a) {
    name = n;
    age = a;
}

void teach() {
    cout << 'I am a teacher. My name is ' << name << '. I am ' << age << ' years old. My responsibility is teaching.' << endl;
}

};

class Student { public: string name; string studentID;

Student(string n, string id) {
    name = n;
    studentID = id;
}

void study() {
    cout << 'I am a student. My name is ' << name << '. My student ID is ' << studentID << '. My responsibility is studying.' << endl;
}

};

class Graduate : public Teacher, public Student { public: Graduate(string n, int a, string id) : Teacher(n, a), Student(n, id) {}

void teach() {
    cout << 'I am a graduate. My name is ' << name << '. I am ' << age << ' years old. My responsibility is teaching.' << endl;
}

void study() {
    cout << 'I am a graduate. My name is ' << name << '. My student ID is ' << studentID << '. My responsibility is studying.' << endl;
}

};

int main() { Teacher teacher('John', 40); Student student('Alice', '123456'); Graduate graduate('Bob', 25, '789012');

teacher.teach();
student.study();
graduate.teach();
graduate.study();

return 0;

}