．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。

以下是对应的 C++ 代码实现：

#include <iostream>
#include <string>

using namespace std;

class Person {
private:
    string name;
    string gender;
    int age;
public:
    Person(string name, string gender, int age): name(name), gender(gender), age(age) {}
    string getName() { return name; }
    string getGender() { return gender; }
    int getAge() { return age; }
};

class Student : public Person {
private:
    string className;
public:
    Student(string name, string gender, int age, string className): Person(name, gender, age), className(className) {}
    string getClassName() { return className; }
};

class StudentWorker : public Student {
private:
    double salary;
public:
    StudentWorker(string name, string gender, int age, string className, double salary): Student(name, gender, age, className), salary(salary) {}
    double getSalary() { return salary; }
};

int main() {
    StudentWorker sw("Tom", "Male", 20, "Class 1", 5000.0);
    cout << "Name: " << sw.getName() << endl;
    cout << "Gender: " << sw.getGender() << endl;
    cout << "Age: " << sw.getAge() << endl;
    cout << "Class Name: " << sw.getClassName() << endl;
    cout << "Salary: " << sw.getSalary() << endl;
    return 0;
}

运行结果为：

Name: Tom
Gender: Male
Age: 20
Class Name: Class 1
Salary: 5000