重庆邮电大学c++面向对象程序设计C++实验四 程序片段编程题 1. 定义一个员工类、经理类、销售员类和销售经理类

好的，以下是我提供的代码：

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

class Employee {
protected:
    string name;
    int age;
public:
    Employee(string name, int age) {
        this->name = name;
        this->age = age;
    }
    virtual void display() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
    }
};

class Manager : public Employee {
private:
    int department;
public:
    Manager(string name, int age, int department) : Employee(name, age) {
        this->department = department;
    }
    void display() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
        cout << "Department: " << department << endl;
    }
};

class Salesman : public Employee {
private:
    int sales;
public:
    Salesman(string name, int age, int sales) : Employee(name, age) {
        this->sales = sales;
    }
    void display() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
        cout << "Sales: " << sales << endl;
    }
};

class SalesManager : public Manager, public Salesman {
public:
    SalesManager(string name, int age, int department, int sales) : Manager(name, age, department), Salesman(name, age, sales) {}
    void display() {
        cout << "Name: " << name << endl;
        cout << "Age: " << age << endl;
        cout << "Department: " << department << endl;
        cout << "Sales: " << sales << endl;
    }
};

int main() {
    Employee* e = new Employee("Tom", 25);
    e->display();
    cout << endl;

    Manager* m = new Manager("Jerry", 30, 101);
    m->display();
    cout << endl;

    Salesman* s = new Salesman("Lucy", 28, 100000);
    s->display();
    cout << endl;

    SalesManager* sm = new SalesManager("Bob", 35, 102, 200000);
    sm->display();
    cout << endl;

    return 0;
}

解释一下：我们定义了一个 `Employee` 类，表示员工，包含姓名和年龄两个属性，以及一个 `display()` 方法用于显示员工信息。然后派生出 `Manager` 类和 `Salesman` 类，分别表示经理和销售员，这两个类在 `Employee` 类的基础上增加了一些属性，分别为部门和销售额，同时也重载了 `display()` 方法。最后，我们再派生出 `SalesManager` 类，表示销售经理，这个类同时继承了 `Manager` 和 `Salesman` 两个类，因此可以直接使用它们的属性和方法。在 `main()` 函数中，我们分别创建了一个 `Employee` 对象、一个 `Manager` 对象、一个 `Salesman` 对象和一个 `SalesManager` 对象，然后都调用了它们的 `display()` 方法来展示各自的信息。