继承中派生类成员函数出现的问题

先看代码

#include
using namespace std;
class Employee
{
private:
    string name;
    string number;
    double basicSalary;

public:
    Employee()
    {
        name = "name";
        number = 1234;
        basicSalary = 3000;
    }
    void input()
    {
        cout << "Name:";
        cin >> name;
        cout << "Number:";
        cin >> number;
        cout << "BasicSalary:";
        cin >> basicSalary;
    }
    double pay()
    {
        return basicSalary;
    }
    void print()
    {
        cout << "Name:" << name << '\t' << "Number:" << number << '\t' << "BasicSalary:" << basicSalary;
        cout << '\t' << "Sum_Salary:" << pay() << '\t';
    }
};

class Salesman :public Employee
{
private:
    double sales;
    double commrate;

public:
    Salesman() :Employee()
    {
        sales = 3241;
        commrate = 2315;
    }
    void input()
    {
        Employee::input();
        cout << "Sales:";
        cin >> sales;
        cout << "Commrate:";
        cin >> commrate;
    }
    double pay()
    {
        return (Employee::pay() + sales * commrate);
    }
    void print()
    {
        Employee::print();
        cout << "Sales:" << sales << '\t' << "Commrate:" << commrate << '\t';
    }
};

class Salesmanager :public Salesman
{
private:
    double jobSalary;

public:
    Salesmanager() :Salesman()
    {
        jobSalary = 2000;
    }
    void input()
    {
        Salesman::input();
        cout << "JobSalary:";
        cin >> jobSalary;
        cout << endl;
    }
    double pay()
    {
        return (Salesman::pay() + jobSalary);
    }
    void print()
    {
        Salesman::print();
        cout << "JobSalary:" << jobSalary << endl;
    }
};

int main()
{
    cout << "基本员工" << endl;
    Employee emp1;
    emp1.input();
    emp1.print();
    cout << endl;
    cout << "销售员" << endl;
    Salesman emp2;
    emp2.input();
    emp2.print();
    cout << "销售经理" << endl;
    Salesmanager emp3;
    emp3.input();
    emp3.print();
}

问题：

为什么我输出的Sum_Salary一直等于basicSalary，而不是我派生类成员函数 pay中的返回值
是我的继承中出现了什么问题吗

你到底觉得哪个输出不对啊，销售员还是销售经理？