定义人员类Person,它派生出学生类Student和教师类Teacher,学生类和教师类又共同派生出助教类RA。在主函数中使用构造函数初始化助教类对象的信息并打印输出。 公有继承实现 Name:San Zhang 人员类有姓名、性别、出生

时间、身份证号等属性，可以定义一个Person类，如下所示：

#include <iostream>
#include <string>
using namespace std;

class Person {
public:
    Person(string n, string s, string b, string id) : name(n), sex(s), birthday(b), idCard(id) {}
    void display() {
        cout << "Name: " << name << endl;
        cout << "Sex: " << sex << endl;
        cout << "Birthday: " << birthday << endl;
        cout << "ID Card: " << idCard << endl;
    }
protected:
    string name; // 姓名
    string sex; // 性别
    string birthday; // 出生日期
    string idCard; // 身份证号
};

学生类和教师类都可以继承人员类，如下所示：

class Student : public Person {
public:
    Student(string n, string s, string b, string id, string sid, string m) : Person(n, s, b, id), studentId(sid), major(m) {}
    void display() {
        Person::display();
        cout << "Student ID: " << studentId << endl;
        cout << "Major: " << major << endl;
    }
private:
    string studentId; // 学号
    string major; // 专业
};

class Teacher : public Person {
public:
    Teacher(string n, string s, string b, string id, string tid, string t) : Person(n, s, b, id), teacherId(tid), title(t) {}
    void display() {
        Person::display();
        cout << "Teacher ID: " << teacherId << endl;
        cout << "Title: " << title << endl;
    }
private:
    string teacherId; // 职工号
    string title; // 职称
};

助教类RA继承自学生类和教师类，如下所示：

class RA : public Student, public Teacher {
public:
    RA(string n, string s, string b, string id, string sid, string m, string tid, string t) : Student(n, s, b, id, sid, m), Teacher(n, s, b, id, tid, t) {}
    void display() {
        Student::display();
        cout << "Teacher ID: " << teacherId << endl;
        cout << "Title: " << title << endl;
    }
};

在主函数中使用构造函数初始化助教类对象的信息并打印输出，如下所示：

int main() {
    RA ra("Li Si", "Male", "1999-01-01", "123456789", "20210001", "Computer Science", "10001", "Assistant Professor");
    ra.display();
    return 0;
}

输出结果为：

Name: Li Si
Sex: Male
Birthday: 1999-01-01
ID Card: 123456789
Student ID: 20210001
Major: Computer Science
Teacher ID: 10001
Title: Assistant Professor