2023.5.7 职工管理系统

//boss.h
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
class Boss :public Worker
{
public:
    //构造函数
    Boss(int id, string name, int dId);
    //显示个人信息
    void showInfo();
    //获取岗位名称
    string getDeptName();
};

//employee.h
#pragma once
#include <iostream>
using namespace std;
#include <string>
#include "worker.h"
class Employee :public Worker
{
public:
    //构造函数
    Employee(int id,string name,int dId);
    //显示个人信息
    void showInfo();
    //获取岗位名称
    string getDeptName();
};

//manager.h
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
class Manager :public Worker
{
public:
    //构造函数
    Manager(int id, string name, int dId);
    //显示个人信息
    void showInfo();
    //获取岗位名称
    string getDeptName();
};

//worker.h
//worker是boss,manager,employee的父类
#pragma once
#include <iostream>
using namespace std;
#include <string>
class Worker
{
public:
    //显示个人信息
    virtual void showInfo() = 0;
    
    //获取岗位名称
    virtual string getDeptName() = 0;

    int m_ID;
    string m_Name;
    int m_DeptID;
};

//workerManager.h
#pragma once
#include <iostream>
#include "worker.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"
using namespace std;
class WorkerManager
{
public:
    WorkerManager();
    ~WorkerManager();
    void show_Menu();//展示菜单
    void ExitSystem();//退出系统
    int m_EmpNum; //记录职工人数
    Worker** m_EmpArray;//职工数组指针
    void Add_Emp();//添加职工
    void save();//保存文件
    bool m_FileIsEmpty;//标志文件是否为空
    int get_Empnum();//统计文件中的人数
    void init_Emp();//初始化职工
    void Show_Emp();//显示职工
    void Del_Emp();//删除职工
    int IsExist(int id);//判断职工是否存在
    void Mod_Emp();//修改职工
    void Find_Emp();
    void Sort_Emp();
    void Clean_File();
};

//boss.cpp
#include "boss.h"
Boss::Boss(int id, string name, int dId)
{
    this->m_ID = id;
    this->m_Name = name;
    this->m_DeptID = dId;
}
void Boss::showInfo()
{
    cout << "职工编号：" << this->m_ID
        << "\t职工姓名：" << this->m_Name
        << "\t岗位：" << this->getDeptName()
        << "\t岗位：管理公司所有事务" << endl;
}
string Boss::getDeptName()
{
    return string("老板");
}

//employee.cpp
#include "employee.h"
Employee::Employee(int id, string name, int dId)
{
    this->m_ID = id;
    this->m_Name = name;
    this->m_DeptID = dId;
}
void Employee::showInfo()
{
    cout << "职工编号：" << this->m_ID
        << "\t职工姓名：" << this->m_Name
        <<"\t岗位：" << this->getDeptName()
        << "\t岗位：完成经理交给的任务"  << endl;
}
string Employee::getDeptName()
{
    return string("员工");
}

//manager.cpp
#include "manager.h"
Manager::Manager(int id, string name, int dId)
{
    this->m_ID = id;
    this->m_Name = name;
    this->m_DeptID = dId;
}
void Manager::showInfo()
{
    cout << "职工编号：" << this->m_ID
        << "\t职工姓名：" << this->m_Name
        <<"\t岗位：" << this->getDeptName()
        << "\t岗位：完成老板交给的任务，下发任务给普通员工"  << endl;
}
string Manager::getDeptName()
{
    return string("经理");
}

//workerManager.cpp
#include "workerManager.h"
#include"worker.h"
WorkerManager::WorkerManager()
{
    ifstream ifs;
    ifs.open(FILENAME, ios::in);
    //文件不存在情况
    if (!ifs.is_open())
    {
        cout << "文件不存在" << endl;
        this->m_EmpNum = 0;
        this->m_FileIsEmpty = true;
        this->m_EmpArray = NULL;
        ifs.close();
        return;
    }
    //文件存在数据为空
    char ch;
    ifs >> ch;
    if (ifs.eof())
    {
        //文件为空
        cout << "文件为空" << endl;
        this->m_EmpNum = 0;
        this->m_FileIsEmpty = true;
        this->m_EmpArray = NULL;
        ifs.close();
        return;
    }
    //文件存在，并且记录数据
    int num = this->get_Empnum();
    cout << "职工人数为：" << num << endl;
    this->m_EmpNum = num;
    //根据职工数创建数组
    this->m_EmpArray = new Worker * [this->m_EmpNum];
    //初始化职工
    init_Emp();

    
}
//WorkerManager::~WorkerManager()
//{
//
//}
void WorkerManager::show_Menu()
{
    cout << "*****************************" << endl;
    cout << "*****欢迎来到职工管理系统****" << endl;
    cout << "****** 0.退出管理程序 *******" << endl;
    cout << "****** 1.增加职工信息 *******" << endl;
    cout << "****** 2.显示职工信息 *******" << endl;
    cout << "****** 3.删除离职职工 *******" << endl;
    cout << "****** 4.修改职工信息 *******" << endl;
    cout << "****** 5.查找职工信息 *******" << endl;
    cout << "****** 6.按照编号排序 *******" << endl;
    cout << "****** 7.清空所有文档 *******" << endl;
    cout << "*****************************" << endl;
    cout << endl;
}
void WorkerManager::ExitSystem()
{
    cout << "欢迎下次使用" << endl;
    system("pause");
    exit(0);//退出程序
}
void WorkerManager::Add_Emp()
{
    cout << "请输入添加职工的数量：" << endl;
    int addNum = 0;
    cin >> addNum;
    if (addNum > 0)
    {
        //新空间的人数 = 原来记录人数+新增人数
        int newSize = this->m_EmpNum + addNum;
        Worker** newSpace = new Worker * [newSize];//开辟新空间
        
        //将原来空间下数据，拷贝到新空间下
        if (this->m_EmpArray != NULL)
        {
            for (int i = 0; i < this->m_EmpNum; i++)
            {
                newSpace[i] = this->m_EmpArray[i];
            }
        }
        //批量添加新数据
        for (int i = 0; i < addNum; i++)
        {
            int id;
            string name;
            int dSelect;
            cout << "请输入第" << i + 1 << "个新职工编号" << endl;
            cin >> id;
            cout << "请输入第" << i + 1 << "个新职工姓名" << endl;
            cin >> name;
            cout << "请选择该职工岗位：" << endl;
            cout << "1、普通职工" << endl;
            cout << "2、经理" << endl;
            cout << "3、老板" << endl;
            cin >> dSelect;

            Worker* worker = NULL;
            switch (dSelect)
            {
            case 1:
                worker = new Employee(id, name, 1);
                break;
            case 2:
                worker = new Manager(id, name, 2);
                break;
            case 3:
                worker = new Boss(id, name, 3);
                break;
            default:
                break;
            }
            //将创建的职工职责，保存到数组中
            newSpace[this->m_EmpNum + i] = worker;
        }
            //释放原有空间
             delete[] this->m_EmpArray;
            //更改新空间的指向
            this->m_EmpArray = newSpace;
            //更新新的职工人数
            this->m_EmpNum = newSize;
            //更新职工不为空
            this->m_FileIsEmpty = false;
            
            //显示添加成功
            cout << "成功添加" << addNum << "名新职工" << endl;

            //添加成功后保存到文件中
            this->save();
    }
    else
    {
        cout << "输入有误" << endl;
    }
    //按任意键清屏回到上一级目录
    system("pause");
    system("cls");
}

WorkerManager::~WorkerManager()
{
    if (this->m_EmpArray != NULL)
    {
        for (int i = 0; i < this->m_EmpNum; i++)
        {
            if (this->m_EmpArray[i] = NULL)
            {
                delete this->m_EmpArray[i];
            }
        }
        delete[] this->m_EmpArray;
        this->m_EmpArray = NULL;
    }
}
void WorkerManager::save()
{
    ofstream ofs;
    ofs.open(FILENAME, ios::out);
    for (int i = 0; i < this->m_EmpNum; i++)
    {
        ofs << this->m_EmpArray[i]->m_ID << " "
            << this->m_EmpArray[i]->m_Name << " "
            << this->m_EmpArray[i]->m_DeptID << endl;
    }
    ofs.close();
}
int WorkerManager::get_Empnum()
{
    ifstream ifs;
    ifs.open(FILENAME, ios::in);
    int id;
    string name;
    int dId;
    int num = 0;
    while (ifs >> id && ifs >> name && ifs >> dId)
    {
        num++;
    }
    ifs.close();
    return  num;
}
void WorkerManager::init_Emp()
{
    ifstream ifs;
    ifs.open(FILENAME,ios::in);
    int id;
    string name;
    int dId;
    int index = 0;
    while (ifs >> id && ifs >> name && ifs >> dId)
    {
        Worker* worker = NULL;
        if (dId == 1)
        {
            worker = new Employee(id, name, dId);
        }
        else if (dId == 2)
        {
            worker = new Manager(id, name, dId);
        }
        else
        {
            worker = new Boss(id, name, dId);
        }
        //存放在数组中
        this->m_EmpArray[index] = worker;
        index++;
    }
}
void WorkerManager::Show_Emp()
{
    if (this->m_FileIsEmpty)
    {
        cout << "文件不存在或者记录为空" << endl;
    }
    else
    {
        for (int i = 0; i < m_EmpNum; i++)
        {
            this->m_EmpArray[i]->showInfo();
        }
    }
    system("pause");
    system("cls");
}
void WorkerManager::Del_Emp()
{
    if (this->m_FileIsEmpty)
    {
        cout << "文件不存在或记录为空" << endl;
    }
    else
    {
        cout << "请输入想要删除职工编号：" << endl;
        int id = 0;
        cin >> id;
        int index = this->IsExist(id);
        if (index != -1)
        {
            for (int i = index; i < this->m_EmpNum - 1; i++)
            {
                this->m_EmpArray[i] = this->m_EmpArray[i + 1];
            }
            this->m_EmpNum--; 
            this->save();
            cout << "删除成功" << endl;
        }
        else
        {
            cout << "删除失败，未找到该职工" << endl;
        }
    }
    system("pause");
    system("cls");
}

int WorkerManager::IsExist(int id)
{
    int index = -1;
    for (int i = 0; i < this->m_EmpNum; i++)
    {
        if (this->m_EmpArray[i]->m_ID == id)
        {
            index = i;
            break;
        }
    }
    return index;
}
void WorkerManager::Mod_Emp()
{
    if (this->m_FileIsEmpty)
    {
        cout << "文件不存在或记录为空" << endl;
    }
    else
    {
        cout << "请输入修改职工的编号：" << endl;
        int id;
        cin >> id;
        int ret = this->IsExist(id);
        if (ret != -1)
        {
            delete this->m_EmpArray[ret];
            int newID = 0;
            string newName = "";
            int dSelect = 0;
            cout << "查到：" << id << "号职工，请输入新职工号：" << endl;
            cin >> newID;
            cout << "请输入新姓名：" << endl;
            cin >> newName;
            cout << "请输入岗位：" << endl;
            cout << "1、普通职工" << endl;
            cout << "2、经理" << endl;
            cout << "3、老板" << endl;
            cin >> dSelect;

            Worker* worker = NULL;
            switch (dSelect)
            {
            case 1:
                worker = new Employee(newID, newName, dSelect);
                break;
            case 2:
                worker = new Manager(newID, newName, dSelect);
                break;
            case 3:
                worker = new Boss(newID, newName, dSelect);
                break;
            default:
                break;
            }
            this->m_EmpArray[ret] = worker;
            cout << "修改成功！" << endl;
            this->save();
        }
        else
        {
            cout << "修改失败，查无此人" << endl;
        }
    }
    system("pause");
    system("cls");
}
void WorkerManager::Find_Emp()
{
    if (this->m_FileIsEmpty)
    {
        cout << "文件不存在或记录为空" << endl;
    }
    else
    {
        cout << "请输入查找的方式" << endl;
        cout << "1、按照职工编号查找" << endl;
        cout << "2、按照姓名查找" << endl;
        int select = 0;
        cin >> select;
        if (select == 1)
        {
            int id;
            cout << "请输入查找的职工号：" << endl;
            cin >> id;
            int ret = IsExist(id);
            if (ret != -1)
            {
                cout << "查找成功！职工信息如下：" << endl;
                this->m_EmpArray[ret]->showInfo();
            }
            else
            {
                cout << "查找失败，查无此人" << endl;
            }
        }
        else if (select == 2)
        {
            string name;
            cout << "请输入查找的姓名：" << endl;
            cin >> name;

            bool flag = false;
            for (int i = 0; i < m_EmpNum; i++)
            {
                if (m_EmpArray[i]->m_Name == name)
                {
                    cout << "查找成功，职工编号为："
                        << m_EmpArray[i]->m_ID
                        << "号的信息如下" << endl;
                    flag = true;
                    this->m_EmpArray[i]->showInfo();
                }
            }
            if (flag == false)
            {
                cout << "查找失败，查无此人" << endl;
            }
        }
    }
    system("pause");
    system("cls");
}
void WorkerManager::Sort_Emp()
{
    if (this->m_FileIsEmpty)
    {
        cout << "文件不存在或记录为空" << endl;
        system("pause");
        system("cls");
    }
    else
    {
        cout << "请选择排序方式：" << endl;
        cout << "1、按职工号升序" << endl;
        cout << "2、按职工号降序" << endl;
        int select = 0;
        cin >> select;
        for (int i = 0; i < m_EmpNum; i++)
        {
            int minOrmax = i;
            for (int j = i + 1; j < m_EmpNum; j++)
            {
                if (select == 1)
                {
                    if (m_EmpArray[minOrmax]->m_ID < m_EmpArray[j]->m_ID)
                    {
                        minOrmax = j;
                    }
                }
                else
                {
                    if (m_EmpArray[minOrmax]->m_ID > m_EmpArray[j]->m_ID)
                    {
                        minOrmax = j;
                    }
                }
            }
            if (i != minOrmax)
            {
                Worker* temp = m_EmpArray[i];
                m_EmpArray[i] = m_EmpArray[minOrmax];
                m_EmpArray[minOrmax] = temp;
            }
        }
        cout << "排序成功，排序后结果为：" << endl;
        this->save();
        this->Show_Emp();
    }
}

void WorkerManager::Clean_File()
{
    cout << "确认清空？" << endl;
    cout << "1、确认" << endl;
    cout << "2、返回" << endl;
    int select = 0;
    cin >> select;
    if (select == 1)
    {
        ofstream ofs(FILENAME, ios::trunc);//删除文件后重新创建
        ofs.close();
        if (this->m_EmpArray != NULL)
        {
            for (int i = 0; i < this->m_EmpNum; i++)
            {
                if (this->m_EmpArray[i] != NULL)
                {
                    delete this->m_EmpArray[i];
                }
            }
            this->m_EmpNum = 0;
            delete[] this->m_EmpArray;
            this->m_EmpArray = NULL;
            this->m_FileIsEmpty = true;
        }
        cout << "清除成功" << endl;
    }
    system("pause");
    system("cls");
}

//职工管理系统.cpp
#include<iostream>
#include "WorkerManager.h"
#include "worker.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"
using namespace std;

int main()
{
    ////测试代码
    //Worker* worker = NULL;
    //worker = new Employee(1, "张三", 1);
    //worker->showInfo();
    //delete worker;
    //Manager* manager = NULL;
    //manager = new Manager(1, "张三", 1);
    //manager->showInfo();
    //delete manager;
    //Boss* boss = NULL;
    //boss = new Boss(1, "张三", 1);
    //boss->showInfo();
    //delete boss;
    //实例化管理者对象
    WorkerManager wm;
    int choice = 0;//用来存储用户的选项
    while (true)
    {
        wm.show_Menu();
        cout << "请输入您的选择：" << endl;
        cin >> choice;
        switch (choice)
        {
        case 0:  //退出系统
            wm.ExitSystem();
            break;
        case 1:  //增加职工
            wm.Add_Emp();
            break;
        case 2:  //显示职工
            wm.Show_Emp();
            break;
        case 3:  //删除职工
            wm.Del_Emp();
            break;
        case 4:  //修改职工
            wm.Mod_Emp();
            break;
        case 5:  //查找职工
            wm.Find_Emp();
            break;
        case 6:  //排序职工
            wm.Sort_Emp();
            break;
        case 7:  //清空文档
            wm.Clean_File();
            break;
        default:
            system("cls");
            break;
        }
    }
    system("pause");
    return 0;
}