．设计person类，包括私有数据成员：姓名、性别和年龄；设计student类继承person类，新增私有数据成员：班级；设计类studentworker继承student类，新增私有数据成员：工资；要求每个类中的数据通过构造函数进行初始化。在主函数中分别定义一个studentworker类的对象，并输出这该对象的各项信息。

下面是代码实现：

#include <iostream>
#include <string>

using namespace std;

class Person {
public:
    Person(string name, char gender, int age): m_name(name), m_gender(gender), m_age(age) {}
    virtual ~Person() {}

    string getName() const { return m_name; }
    char getGender() const { return m_gender; }
    int getAge() const { return m_age; }

private:
    string m_name;
    char m_gender;
    int m_age;
};

class Student : public Person {
public:
    Student(string name, char gender, int age, string cls): Person(name, gender, age), m_class(cls) {}
    virtual ~Student() {}

    string getClass() const { return m_class; }

private:
    string m_class;
};

class StudentWorker : public Student {
public:
    StudentWorker(string name, char gender, int age, string cls, double salary): Student(name, gender, age, cls), m_salary(salary) {}
    virtual ~StudentWorker() {}

    double getSalary() const { return m_salary; }

private:
    double m_salary;
};

int main() {
    StudentWorker sw("Tom", 'M', 20, "Class 1", 10000.0);
    cout << "Name: " << sw.getName() << endl;
    cout << "Gender: " << sw.getGender() << endl;
    cout << "Age: " << sw.getAge() << endl;
    cout << "Class: " << sw.getClass() << endl;
    cout << "Salary: " << sw.getSalary() << endl;

    return 0;
}

输出结果：

Name: Tom
Gender: M
Age: 20
Class: Class 1
Salary: 10000