C++学习历程（五）公司职员信息系统（多文件编译）

需求：1.一家公司内，有四种职位，经理（Manager），技术人员（Technician，销售（Salesman），销售经理（SalesManager）。
2.每个员工都有自己的工号，工号从1000开始，每多一个人加1。
3.公司：经理：8000，技术人员：100/h，销售：4%*月销售额，销售经理：2%*月总销售额。

1.首先创建.h文件  Staff.h，五种职位，创建五个类。

#ifndef _STAFF_H_
#define _STAFF_H_

#include <iostream>

using namespace std;

class Staff
{
    protected:
        string m_name;
        static int m_num;
        string m_position;
        double m_money;
        int m_id;
        static double m_allmoney;

    public:
        Staff(string name,string position);
        virtual void print() = 0;
};

class Technician:public Staff
{
    int m_time;
    public:
        Technician(string name,int time);
        void print();

};

class Manager : public Staff
{
    public:
        Manager(string name);
        void print();
};

class Salesman : public Staff
{
    public:
        Salesman(string name);
        Salesman(string name,int money);
        void print();
};

class SalesManager : public Salesman
{
    public:
        SalesManager(string name);
        void print();
};



#endif

2.然后床垫.cpp文件，staff.cpp

#include "Staff.h"
#include <iostream>

using namespace std;

int Staff::m_num = 1000;
double Staff::m_allmoney = 0;
Staff::Staff(string name,string position)
{
    m_name = name;
    m_position = position;
    m_num ++;
    m_id = m_num;
}


Technician::Technician(string name,int time) :Staff(name,"Technician")
{
    m_time = time;
    m_money = (100 * m_time);
}

void Technician::print()
{
    cout << "The name is      : " << m_name << endl;
    cout << "The jobnumber is : " << m_num << endl;
    cout << "The position is  : " << m_position << endl;
    cout << "The worktime is  : " << m_time << endl;
    cout << "The monthmoney is: " << m_money << endl;
    cout << "*********************************" << endl;
}


Manager::Manager(string name) : Staff(name,"Manager")
{
    m_money = 8000;
}

void Manager::print()
{
    cout << "The name is      : " << m_name << endl;
    cout << "The jobid is     : " << m_id << endl;
    cout << "The position is  : " << m_position << endl;
    cout << "The monthmoney is: " << m_money << endl;
    cout << "***************************" << endl;
}


Salesman::Salesman(string name):Staff(name,"SalesManager")
{
    
}

Salesman::Salesman(string name,int money) : Staff(name,"Salesman")
{
    m_money = 0.04 * money;
    m_allmoney += money;
}

void Salesman::print()
{
    cout << "The name is      : " << m_name << endl;
    cout << "The jobid is     : " << m_id <<  endl;
    cout << "The position is  : " << m_position << endl;
    cout << "The monthmoney is: " << m_money << endl;
    cout << "***************************" << endl; 
}



SalesManager::SalesManager(string name) : Salesman(name)
{
    m_money = 4000 + 0.02 * m_allmoney;
}

void SalesManager::print()
{
    cout << "The name is      : " << m_name << endl; 
    cout << "The jobid is     : " << m_id << endl;
    cout << "The position is  : " << m_position << endl;
    cout << "The monthmoney is: " << m_money << endl;
    cout << "******************************" << endl;
}

3.创建执行文件main.cpp

#include <iostream>
#include "Staff.h"

using namespace std;

int main(int argc, char **argv)
{
    Manager     a("Laowangba");
    Technician  b("Zhanganliu",rand() % 300);
    Salesman    c("Xiaojibatao",24561);
    Salesman    d("Da jibatao",36541);
    Salesman    f("Old jibatao",54134);
    SalesManager  e("Niu jia");

    a.print();
    b.print();
    c.print();
    d.print();
    e.print();
    f.print();

    return 0;
}