职工管理系统

头文件

workerManager.h

#pragma once//防止头文件重复包含
#include<iostream>
#include"worker.h"
#include"employee.h"
#include"boss.h"
#include"manager.h"

#include<fstream>

#define FILENAME "empFile.txt"


using namespace std;

class WorkerManager {
public:
	//构造函数
	WorkerManager();

	//析构函数
	~WorkerManager();

	//展示菜单
	void Show_Menu();

	//退出系统
	void ExitSystem();

	//添加职工
	void Add_Emp();

	//保存文件
	void save();

	//统计文件中的人数
	int get_EmpNum();

	//初始化员工
	void init_Emp();

	//显示职工
	void show_Emp();

	//删除职工
	void Del_Emp();

	//修改职工
	void Mod_Emp();

	//查找职工	
	void Fild_Emp();

	//按照职工编号排序
	void Sort_Emp();

	//清空文件
	void Clean_File();

	//判断职工是否存在 如果存在返回职工所在数组中的位置 不存在返回-1
	int IsExist(int id);

	//判断文件是否为空 标志
	bool m_FileIsEmpty;


	//记录职工人数
	int m_EmpNum;

	//职工数组指针
	Worker ** m_EmpArray;
};

worker.h

#pragma once
#include<iostream>
using namespace std;


//职工的抽象类
class Worker {
public:
	
	//显示个人信息
	virtual void showInfo() = 0;

	//获取岗位名称
	virtual string getDeptName() = 0;

	//职工编号
	int m_Id;
	//职工姓名
	string m_Name;
	//部门编号
	int m_DeptId;
};

manager.h

#pragma once
#include<iostream>
using namespace std;
#include"worker.h"

//经理类
class Manager :public Worker {
public:

	//构造函数
	Manager(int id, string name, int dId);

	//显示个人信息
	virtual void showInfo();

	//获取岗位名称
	virtual string getDeptName();
};

boss.h

#pragma once
#include<iostream>
using namespace std;
#include"worker.h"

//老板类
class Boss :public Worker {
public:

	//构造函数
	Boss(int id, string name, int dId);

	//显示个人信息
	virtual void showInfo();

	//获取岗位名称
	virtual string getDeptName();
};

employee.h

//普通员工文件
#pragma once
#include<iostream>
#include"worker.h"
using namespace std;

class Employee :public Worker {
public:

	//构造函数
	Employee(int id,string name,int dId);

	//显示个人信息
	virtual void showInfo();

	//获取岗位名称
	virtual string getDeptName();


};

源文件

职工管理系统.cpp

#include<iostream>
using namespace std;
#include"workerManager.h"
#include"worker.h"
#include"employee.h"
#include"boss.h"
#include"manager.h"

int main() {
	测试代码：
	//Worker* worker = NULL;
	//worker = new Employee(1, "张三", 1);
	//worker->showInfo();
	//delete worker;
	//
	//worker = new Manager(2, "李四", 2);
	//worker->showInfo();
	//delete worker;

	//worker = new Boss(3, "王五", 3);
	//worker->showInfo();
	//delete worker;


	//实例化管理者的对象
	WorkerManager wm;

	int choice = 0;//用来存储用户的选项

	while (true) {
		//调用展示菜单的成员函数
		wm.Show_Menu();

		cout << "请输入您的选择:" << endl;
		cin >> choice;//接收用户的选项

		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.Fild_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");//清屏
			break;

		}
	}
	
	system("pause");
	return 0;
}

workerManager.cpp

#pragma once
#include"workerManager.h"
#include"employee.h"

WorkerManager::WorkerManager() {

    //1.文件不存在
    ifstream ifs;
    ifs.open(FILENAME, ios::in);//读文件

    if (!ifs.is_open()) {
       // cout << "文件不存在" << endl;
        //初始化属性
        //初始化人数为0
        this->m_EmpNum = 0;
        //初始化数组指针
        this->m_EmpArray = NULL;
        //初始化文件是否为空
        this->m_FileIsEmpty = true;
        ifs.close();
        return;
    }
    
    //2.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;
        //初始化人数为0
        this->m_EmpNum = 0;
        //初始化数组指针
        this->m_EmpArray = NULL;
        //初始化文件是否为空
        this->m_FileIsEmpty = true;
        ifs.close();
        return;
    }

    //3.文件存在  也记录了数据
    int num = this->get_EmpNum();
    //cout << "职工的人数为：" << num << endl;

    this->m_EmpNum = num;
    //开辟空间
    this->m_EmpArray = new Worker * [this->m_EmpNum];
    //将文件中的数据存到数组中
    this->init_Emp();

    //测试代码
    //for (int i = 0; i < this->m_EmpNum; i++) {
    //    cout << "职工编号：" << this->m_EmpArray[i]->m_Id
    //        << "姓名：" << this->m_EmpArray[i]->m_Name
    //        << "部门编号" << this->m_EmpArray[i]->m_DeptId << endl;
    //}


 }


//菜单    
void WorkerManager::Show_Menu() {
    cout << "****************************************" << endl;
    cout << "******欢迎使用职工管理系统！************" << endl;
    cout << "*********0.退出管理系统*****************" << 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;
}

//退出系统
void WorkerManager::ExitSystem() {
    cout << "欢迎下次使用" << endl;
    system("pause");
    exit(0);//退出程序
}

//添加职工
void WorkerManager::Add_Emp() {
    cout << "请输入添加职工数量：" << endl;

    int addNum = 0;//保存用户的输入数量
    cin >> addNum;
    if (addNum > 0) {
        //添加
        //计算新的添加空间大小
        int newSize = this->m_EmpNum + addNum;//新空间大小=原来记录人数+新增人数
         
        //开辟新空间
        Worker ** newSpace= new Worker * [newSize];

        //将原来空间的数据，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];
            }
        }

        //批量添加新的数据
        for (int i = 0; i < addNum; i++) {
            int id;//职工编号
            string name;//职工姓名
            int dSelect;//部门

            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 << "请选择该职工的岗位：" << 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  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;

        //更新职工不为空标志
        this->m_FileIsEmpty = false;

        //保存数据到文件中
        this->save();

        //提示添加成功
        cout << "成功添加" << addNum << "名新职工" << endl;

        

    }
    else {
        cout << "输入有误" << endl;
    }

    //按任意键后清屏回到上级目录
    system("pause");
    system("cls");
}


//保存文件
void WorkerManager::save() {
    ofstream ofs;
    ofs.open(FILENAME, ios::out);//用输出的方式打开文件

    //将每个人的数据写入到文件中
    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;
    }
    
    //关闭文件
    ofs.close();
}

//统计文件中的人数
int WorkerManager::get_EmpNum() {
    ifstream ifs;
    ifs.open(FILENAME, ios::in);//打开文件  读

    int id;
    string name;
    int dId;

    int num = 0;

    while (ifs >> id && ifs >> name && ifs >> dId) {
        //统计人数变量
        num++;
    }
    return num;
}

//初始化员工
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) {//普通职工
            worker = new Employee(id, name, dId);

        }
        else if (dId == 2) {
            //经理
            worker = new Manager(id, name, dId);
        }
        else {//老板
            worker = new Boss(id, name, dId);
        }
        this->m_EmpArray[index] = worker;

        index++;
    }

    //关闭文件
    ifs.close();
}

//显示职工
void WorkerManager::show_Emp()
{
    //判断文件是否为空
    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();
        }
    }
    //按任意键清屏
    system("pause");
    system("cls");

}

//删除职工(待确定)
void WorkerManager::Del_Emp()
{
    if (this->m_FileIsEmpty) {
        cout << "文件不存在或记录为空" << endl;
    }
    else {
        //按照职工的编号删除职工
        cout << "请输入想要删除的职工编号：" << endl;
        int id = 0;
        cin >> id;

        int index=this->IsExist(id);

        if (index != -1) {//说明职工存在 并且要删除掉index位置上的职工
            //数据前移
            for (int i = index; i < this->m_EmpNum - 1 - index; i++) {
                //数据前移
                this->m_EmpArray[i] = this->m_EmpArray[i + 1];
            }
            this->m_EmpNum--;//更新数组中人员个数

            this->save();

            cout << "删除成功" << endl;
        }
        else {
            cout << "删除失败，未找到该职工" << endl;
        }
    }

    //按任意键清屏
    system("pause");
    system("cls");

}
//修改职工
void WorkerManager::Mod_Emp()
{
    if (this->m_FileIsEmpty) {
        cout << "文件不存在或者记录为空" << endl;
    }
    else {
        cout << "请输入修改的职工的编号：" << endl;
        int id;
        cin >> id;  
        int ret=this->IsExist(id);
        if (ret != -1) {
            //找到编号的职工
            delete this->m_EmpArray[ret];

            int newId=0;
            string newName = " ";
            int dSelect = 0;

            cout << "查找：" << id << "号职工，请输入新职工号：" << endl;
            cin >> newId;

            cout << "请输入新的姓名" << endl;
            cin >> newName;

            cout << "请输入新的岗位：" << 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;
            }

            //更新数据 到数组中
            this->m_EmpArray[ret] = worker;

            cout << "修改成功！" << endl;

            //保存到文件中
            this->save();
        }
        else {
            cout << "修改失败，查无此人" << 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) {
            //找到职工
            index = i;
            break;
        }
    }
    return index;
}

//查找职工	
void WorkerManager::Fild_Emp() {
    if (this->m_FileIsEmpty) {
        cout << "文件不存在或者为空!" << endl;
    }
    else {
        cout << "请输入查找的方式：" << endl;
        cout << "1.按照职工的编号查找 " << endl;
        cout << "2.按照职工的姓名查找" << endl;

        int select=0;
        cin >> select;

        if (select == 1) {
            //按照编号查
            int id;
            cout << "请输入查找的职工的编号：" << endl;
            cin >> id;
            int ret=IsExist(id);
            if (ret != -1) {
                //找到职工
                cout << "查找成功,该职工的信息如下：" << endl;
                this->m_EmpArray[ret]->showInfo();
            }
            else {
                cout << "查找失败，查无此人" << endl;
            }
        }
        else if (select == 2) {
            //按照姓名查
            string name;
            cout << "请输入查找的姓名：" << endl;
            cin >> name;

            //加入判断是否查到的标志
            bool flag = false;//默认未找到职工

            for (int i = 0; i < m_EmpNum; i++) {
                if (this->m_EmpArray[i]->m_Name == name) {
                    cout << "查找成功，职工编号为：" << this->m_EmpArray[i]->m_Id << "号职工信息如下" << endl;

                    flag = true;

                    //调用显示信息的接口
                    this->m_EmpArray[i]->showInfo();
                }

            }
            if (flag == false) {
                cout << "查找失败，查无此人！" << endl;
            }
        }
        else {
            cout << "输入的选项有误" << endl;
        }
    }
    //按任意键清屏
    system("pause");
    system("cls");

}


//按照职工编号排序
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.按职工号进行升序" << endl;
        cout << "2.按职工号进行降序" << endl;

        int select = 0;
        cin >> select;
        for (int i = 0; i < m_EmpNum; i++) {
            int minOrMax = i;//声明最小值或最大值下标
            for (int j = i + 1; j < this->m_EmpNum; j++) {

                if (select == 1) {//升序
                    if (this->m_EmpArray[minOrMax]->m_Id > this->m_EmpArray[j]->m_Id) {
                        minOrMax = j;
                    }
                }
                else {
                    //降序
                    if (this->m_EmpArray[minOrMax]->m_Id < this->m_EmpArray[j]->m_Id) {
                        minOrMax = j;
                    }

                }

            }
            //判断一开始认定的 最小值或最大值 是不是 计算的最小值或最大值，如果不是交换顺序
            if (i != minOrMax) {
                Worker* temp = this->m_EmpArray[i];
                this->m_EmpArray[i] = this->m_EmpArray[minOrMax];
                this->m_EmpArray[minOrMax] = temp;
            }
            
        }
        cout << "排序成功！ 排序后的结果为：" << endl;
        this->save();//排序后的结果保存到文件中
        this->show_Emp();//展示所有职工
    }

    


}


//清空文件
void WorkerManager::Clean_File() {
    cout << "确认清空吗？" << endl;
    cout << "1.确认" << endl;
    cout << "2.返回" << endl;
    
    int select = 0;
    cin >> select;
    if (select == 1) {
        //清空文件
        ofstream ofs(FILENAME, ios::trunc);//删除文件后重新创建
        ofs.close();

        if (this->m_EmpArray != NULL) {

            //删除堆区的每个职工对象
            for (int i = 0; i < this->m_EmpNum; i++) {
                delete this->m_EmpArray[i];
                this->m_EmpArray[i] = NULL;
                    
            }

            //删除堆区数组指针
            delete[] this->m_EmpArray;
            this->m_EmpArray = NULL;
            this->m_EmpNum = 0;
            this->m_FileIsEmpty = true;
        }
        cout << "清空成功" << endl;

    }
    system("pause");
    system("cls");

}



WorkerManager::~WorkerManager() {
    if (this->m_EmpArray != NULL) {
        delete[] this->m_EmpArray;
        this->m_EmpArray = NULL;
    }

}

manager.cpp

#pragma once
#include"manager.h"

//构造函数
Manager::Manager(int id, string name, int dId) {
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = dId;
}

//显示个人信息
void  Manager::showInfo() {
	cout << "职工编号：" << this->m_Id
		<< "tt职工姓名：" << this->m_Name
		<< "tt岗位：" << this->getDeptName()
		<< "tt岗位职责：完成老板交给的任务，并下发任务给普通员工" << endl;
}

//获取岗位名称
string Manager::getDeptName() {
	return string("经理");
}

employee.cpp

#pragma once
#include"employee.h"

//构造函数
Employee::Employee(int id, string name, int dId) {
    this->m_Id = id;
    this->m_Name = name;
    this->m_DeptId = dId;
}

//显示个人信息
void Employee::showInfo() {
    cout << "职工编号：" << this->m_Id
        << "tt职工姓名：" << this->m_Name
        << "tt岗位：" << this->getDeptName()
        << "tt岗位职责：完成经理交给的任务" << endl;
            
 }

//获取岗位名称
string Employee::getDeptName() {
    return string("员工");
 }

boss.cpp

#pragma once
#include"boss.h"

//构造函数
Boss::Boss(int id, string name, int dId) {
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = dId;
}

//显示个人信息
void  Boss::showInfo() {
	cout << "职工编号：" << this->m_Id
		<< "tt职工姓名：" << this->m_Name
		<< "tt岗位：" << this->getDeptName()
		<< "tt岗位职责：管理公司所有事务" << endl;
}

//获取岗位名称
string Boss::getDeptName() {
	return string("总裁");
}

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