【程序】c++雇员工资管理系统

首先寻找对象：

 运行结果：

.h文件

#pragma once
#include<string>
#include<iostream>
using namespace std;
//注意面向对象的三大特征：封装，继承与多态

class Employee               //提取经理和员工公有属性和行为进行封装
{
public:
    //构造函数
    Employee(string strName, int nYears)
        :m_strName(strName),
        m_nYears(nYears)
    {};

    virtual int GetSalary() = 0;           //提供一个纯虚函数，多样化

    string GetName()
    {
        return m_strName;
    }

    //员工类的属性，遗传，设置为prote
protected:
    int m_nYears;
    string m_strName;


};

class Manager :public Employee         //继承
{
public:
    Manager(string strName, int nYears)
        :Employee(strName, nYears)
    {};

    virtual int GetSalary()            //多态
    {
        return 5000 * m_nYears + 10000;
    }
};

class Worker :public Employee
{
public:
    Worker(string strName, int nYears)
        :Employee(strName, nYears)
    {};

    virtual int GetSalary()
    {
        return 200 * m_nYears + 2000;
    }
};

const int MAX_COUNT = 1000;

class SalarySystem
{
private:
    int m_nCount;           //当前员工数
    Employee* m_arrEmployee[MAX_COUNT];

public:
    SalarySystem(void);//构造函数和析构函数
    ~SalarySystem(void);

public:
    void InputEmployee(void);
    void DisplaySalary(void);
    double GetAverSalary(void);
};

.cpp文件：

#include"SalarySystem.h"


SalarySystem::SalarySystem(void)
{
    m_nCount = 0;    //构造函数，对类的属性进行初始化，将员工总数初始化为0
}

//析构函数，清理资源，释放内存
SalarySystem::~SalarySystem(void)
{
    //循环遍历保存员工对象指针的数组，清理资源
    for (int i = 0; i < m_nCount; ++i)
    {
        Employee*pEmployee = m_arrEmployee[i];
        delete pEmployee;
        m_arrEmployee[i] = NULL;
    }
}

void SalarySystem::InputEmployee(void)
{
    cout << "请输入员工信息\n" <<
        "格式：员工姓名  入职时间  是否为经理级别\n" <<
        "例如： chenxi 4 0\n" <<
        "输入end表示结束" << endl;

    //局部变量，用于接用户的输入
    string strName = "";
    int nYears = 0;
    bool bManager = false;
    int nIndex = 0;

    //开始循环，接收用户输入的用户数据
    while (nIndex < MAX_COUNT)
    {
        //清空输入流
        cin.clear();
        cin >> strName;
        if ("end" == strName)
            break;

        cin>> nYears >> bManager;

        

        Employee*pEmployee = NULL;
        if (bManager)
        {
            pEmployee = new Manager(strName, nYears);
        }
        else
        {
            pEmployee = new Worker(strName, nYears);
        }

        m_arrEmployee[nIndex] = pEmployee;

        ++nIndex;

    }

    m_nCount = nIndex;//保存输入的员工总数
}

void SalarySystem::DisplaySalary(void)
{
    cout << "工资管理系统" << endl;
    cout << "当前员工总数" << m_nCount << "\n 平均工资是： " << GetAverSalary() << endl;
    cout << "员工具体信息如下：" << endl;

    for (int i = 0; i < m_nCount; ++i)
    {
        Employee*pEmployee = m_arrEmployee[i];
        cout << pEmployee->GetName() << "\t" <<
            pEmployee->GetSalary() << endl;
    }
}


double SalarySystem::GetAverSalary()
{
    int nTotal = 0;

    for (int i = 0; i < m_nCount; ++i)
    {
        Employee*pEmployee = m_arrEmployee[i];
        nTotal += pEmployee->GetSalary();
    }

    return (double)nTotal / (m_nCount);

}

主函数：

#include"SalarySystem.h"
//#include<cmath> .h头文件已经包含，可以略去

using namespace std;

int main()
{
    

    SalarySystem nSalarySys;

    nSalarySys.InputEmployee();
    nSalarySys.DisplaySalary();


    
    cin.get();
    cin.get();
    cin.get();
    return 0;

}