基于多态的职工管理系统

最新推荐文章于 2025-12-12 16:37:00 发布

原创最新推荐文章于 2025-12-12 16:37:00 发布 · 96 阅读

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CC 4.0 BY-SA版权

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#c++ #开发语言

1、职工抽象类worker.h

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


//职工抽象类,不需要实现，所以不要创建源文件
class Worker
{
public:
	//显示个人所有信息
	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;
};

2、员工类、经理类、老板类
employee.h

#pragma once
//普通员工文件
#include "worker.h"

class Employee :public Worker
{
public:
	//构造函数
	Employee(int id, string name, int deptid);

	//显示个人所有信息
	virtual void showInfo();

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

employee.cpp

#include "employee.h"

Employee::Employee(int id, string name, int deptid)
{
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = deptid;
}

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岗位职责:完成经理交给的任务" << endl;
}

string Employee::getDeptName()
{
	return string("普通员工");
}

manager.h

#pragma once
#include "worker.h"

class Manager:public Worker
{
public:
	//构造函数
	Manager(int id, string name, int deptid);

	//显示个人所有信息
	virtual void showInfo();

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

manager.cpp

#include "manager.h"

Manager::Manager(int id, string name, int deptid)
{
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = deptid;
}

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岗位职责:完成老板交给的任务,并下发任务给普通员工" << endl;
}

string Manager::getDeptName()
{
	return string("经理");
}

boss.h

#pragma once
#include "worker.h"

class Boss :public Worker
{
public:
	//构造函数
	Boss(int id, string name, int deptid);

	//显示个人所有信息
	virtual void showInfo();

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

boss.cpp

#include "boss.h"

Boss::Boss(int id, string name, int deptid)
{
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = deptid;
}

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岗位职责:管理公司所有事物" << endl;
}

string Boss::getDeptName()
{
	return string("老板");
}

3、管理系统
WorkerManager.h

#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
#include<fstream>
#define FILENAME "empFile.txt"

#include "employee.h"
#include "manager.h"
#include "boss.h"

class WorkerManager
{
public:

	//构造函数
	WorkerManager();

	//展示菜单
	void Show_Menu();

	//退出系统
	void ExitSystem();

	//记录职工人数
	int m_EmpNum;

	//记录职工指针
	Worker** m_EmpArray;

	//添加员工
	void Add_Emp();

	//保存文件
	void save();

	//判断文件是否为空
	bool m_FileIsEmpty;

	//统计文件中职工人数
	int get_EmpNum();

	//初始化职工
	void Init_Emp();

	//显示职工信息
	void Show_Emp();

	//删除职工
	void Del_Emp();

	//判断职工是否存在，存在返回数组中位置，不存在返回-1
	int Is_Exist(int id);

	//修改职工信息
	void Mod_Emp();

	//查找职工
	void Find_Emp();

	//按照职工编号排序
	void Sort_Emp();

	//清空文件
	void Clean_File();

	//析构函数
	~WorkerManager();
};

WorkerManager.cpp

#include "workerManager.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"

WorkerManager::WorkerManager()
{
	//文件打开三种情况
	//1、文件不存在
	ifstream ifs;
	ifs.open(FILENAME, ios::in); //读文件
	if (!ifs.is_open())
	{
		//初始化属性
		//初始化记录人数
		this->m_EmpNum = 0;

		//初始化数组指针
		this->m_EmpArray = NULL;

		//初始化文件为空
		this->m_FileIsEmpty = true;
		ifs.close();
		return;
	}

	//2、文件存在，但没有内容
	char ch;
	ifs >> ch;
	if (ifs.eof()) //判断读取内容是否为文件末尾EOF标志
	{
		//初始化属性
		//初始化记录人数
		this->m_EmpNum = 0;

		//初始化数组指针
		this->m_EmpArray = NULL;

		//初始化文件为空
		this->m_FileIsEmpty = true;
		ifs.close();
		return;
	}

	//3、文件存在且有内容
	int num = this->get_EmpNum();
	this->m_EmpNum = num;

	//开辟空间
	this->m_EmpArray = new Worker * [this->m_EmpNum];
	//将文件中数据存到数组中
	this->Init_Emp();
}

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

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

//添加员工
void WorkerManager::Add_Emp()
{
	cout << "请输入添加职工数量： " << endl;
	int addNum = 0; //保存用户输入的职工数量
	cin >> addNum;

	if (addNum>0)
	{
		//添加操作
		//计算添加新空间大小
		int newSize = this->m_EmpNum + addNum; //新空间人数=原来记录的人数+新添加人数

		//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;//部门选择

			cout << "请输入第 " << i + 1 << " 个新员工的编号: " << endl;
			cin >> id;

			cout << "请输入第 " << i + 1 << " 个新员工的姓名: " << endl;
			cin >> name;

			cout << "请输入该职工的岗位: " << 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;
			}

			//将创建职工职责保存在数组中
			newSpace[this->m_EmpNum + i] = worker;

		}

		//释放原有空间
		delete[] this->m_EmpArray;

		//更改新空间指向
		this->m_EmpArray = newSpace;

		//更新新职工人数
		this->m_EmpNum = newSize;

		//更新文件不为空的标志
		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 << "输入数据有误！" << endl;
	}

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

}

//保存文件
void WorkerManager::save()
{
	ofstream ofs;
	ofs.open(FILENAME, ios::out);//写文件

	//将每个人数据写入到文件中
	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();
}

int WorkerManager::get_EmpNum()
{
	ifstream ifs;
	ifs.open(FILENAME, ios::in); //读文件

	int id;
	string name;
	int deptId;

	int num = 0;
	while (ifs >> id && ifs >> name && ifs >> deptId)
	{
		num++;  //统计人数
	}
	ifs.close();
	return num;
}

//初始化职工
void WorkerManager::Init_Emp()
{
	ifstream ifs;
	ifs.open(FILENAME, ios::in);

	int id;
	string name;
	int deptId;

	int index = 0;
	while (ifs >> id && ifs >> name && ifs >> deptId)
	{
		Worker* worker = NULL;
		if (deptId == 1)//普通职工
		{
			worker = new Employee(id, name, deptId);
		}
		else if (deptId == 2) //经理
		{
			worker = new Manager(id, name, deptId);
		}
		else //老板
		{
			worker = new Boss(id, name, deptId);
		}

		this->m_EmpArray[index] = worker;
		index++;
	}

	//关闭文件
	ifs.close();
}

//显示职工信息
void WorkerManager::Show_Emp()
{
	//判断文件是否为空
	if (this->m_FileIsEmpty)
	{
		cout << "文件不存在或记录为空!" << endl;
	}
	else
	{
		for (int i = 0; i < this->m_EmpNum; i++)
		{
			//利用多态调用程序接口
			this->m_EmpArray[i]->showInfo();
		}
	}
	//按任意键清屏
	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
	{
		//按照职工编号删除职工
		cout << "请输入想要删除职工的编号: " << endl;
		int id = 0;
		cin >> id;

		int index = this->Is_Exist(id);
		if (index!=-1)
		{
			//职工存在，并且要删除index位置上的职工
			//数组实现，数据前移
			for (int i = index; i < this->m_EmpNum-1; i++)
			{
				this->m_EmpArray[i] = this->m_EmpArray[i + 1];
			}
			this->m_EmpNum--;//更新数组中记录人数

			//数据更新到文件中
			this->save();

			cout << "删除成功！" << endl;

		}
		else
		{
			cout << "修改失败，查无此人!" << endl;
		}
	}

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

int WorkerManager::Is_Exist(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;
}

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->Is_Exist(id);
		if (ret != -1)
		{
			//找到职工
			delete this->m_EmpArray[ret];

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

			cout << "查到: " << id << " 号员工,请输入新职工编号：" << endl;
			cin >> newId;

			cout << "请输入新姓名：" << endl;
			cin >> newName;

			cout << "请输入新岗位：" << endl;
			cout << "1、普通职工" << endl;
			cout << "2、经理" << endl;
			cout << "3、老板" << endl;
			cin >> newDeptId;

			Worker* worker = NULL;
			switch (newDeptId)
			{
			case 1:
				worker = new Employee(newId, newName, newDeptId);
				break;
			case 2:
				worker = new Manager(newId, newName, newDeptId);
				break;
			case 3:
				worker = new Boss(newId, newName, newDeptId);
				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");
}

void WorkerManager::Find_Emp()
{
	if (this->m_FileIsEmpty)
	{
		cout << "文件不存在或记录为空!" << endl;
	}
	else
	{
		cout << "请选择要查找的方式: " << endl;
		cout << "1、按职工编号查找" << endl;
		cout << "2、按姓名查找" << endl;
		int select = 0;
		cin >> select;

		if (select==1)//按职工编号查找
		{
			cout << "请输入想要查找的职工编号: " << endl;
			int id;
			cin >> id;

			int ret = this->Is_Exist(id);
			if (ret!=-1)
			{
				cout << "查找成功，该职工信息如下: " << endl;
				this->m_EmpArray[ret]->showInfo();
			}
			else
			{
				cout << "查找失败，查无此人!" << endl;
			}
		}
		else if (select==2)
		{
			cout << "请输入想要查找的职工姓名: " << endl;
			string name;
			cin >> name;

			bool flag = false;//姓名查找标志
			for (int i = 0; i < this->m_EmpNum; i++)
			{
				if (this->m_EmpArray[i]->m_Name==name)
				{
					cout << "查找成功，该职工信息如下: " << endl;
					this->m_EmpArray[i]->showInfo();
					flag = true;
				}
			}
			if (flag == false)
			{
				cout << "查找失败，查无此人！" << endl;
			}
		}
		else
		{
			cout << "输入选项有误！" << 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;
		//下面排序成功后的显示职工函数有清屏操作，而这里没有
		system("pause");
		system("cls");
	}
	else
	{
		cout << "请选择排序方式: " << endl;
		cout << "1、按照职工号进行升序" << endl;
		cout << "2、按照职工号进行降序" << endl;

		int select = 0;
		cin >> select;

		for (int i = 0; i < this->m_EmpNum; i++)
		{
			int min_Or_max = i;//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[min_Or_max]->m_Id >this->m_EmpArray[j]->m_Id)
					{
						min_Or_max = j;
					}
				}
				else if (select == 2)
				{
					if (this->m_EmpArray[min_Or_max]->m_Id < this->m_EmpArray[j]->m_Id)
					{
						min_Or_max = j;
					}
				}
				else
				{
					cout << "输入选项错误! " << endl;
					return;
				}
			}
			if (i != min_Or_max)
			{
				Worker* temp = this->m_EmpArray[i];
				this->m_EmpArray[i] = this->m_EmpArray[min_Or_max];
				this->m_EmpArray[min_Or_max] = temp;
			}
		}
	}
	cout << "排序成功！排序后的结果为: " << endl;
	this->save();//排序后文件更新
	this->Show_Emp();//展示所有职工
}

void WorkerManager::Clean_File()
{
	cout << "确认清空?" << endl;
	cout << "1、确实" << endl;
	cout << "2、误操作，返回" << endl;

	int select = 0;
	cin >> select;

	if (select == 1)
	{
		ofstream ofs(FILENAME, ios::trunc);//打开方式trunc，删除文件并重新创建文件
		ofs.close();

		if (this->m_EmpArray != NULL)
		{
			for (int i = 0; i < m_EmpNum; i++)
			{
				delete this->m_EmpArray[i];
			}
			this->m_EmpNum = 0;
			delete[]this->m_EmpArray;
			this->m_EmpArray = NULL;
			this->m_FileIsEmpty = true;
		}
		cout << "清空成功!" << endl;
	}
	system("pause");
	system("cls");
}

//析构函数
WorkerManager::~WorkerManager()
{
	if (this->m_EmpArray != NULL)
	{
		for (int i = 0; i < m_EmpNum; i++)
		{
			delete this->m_EmpArray[i];
		}
		delete[] this->m_EmpArray;
		this->m_FileIsEmpty = true;
	}
}

4、主文件

#include "workerManager.h"

#include "employee.h"
#include "manager.h"
#include "boss.h"

int main()
{

	WorkerManager wm;

	int choice = 0;

	while (true)
	{
		//展示菜单
		wm.Show_Menu();
		cout << "请输入你的选择:" << endl;
		cin >> choice;

		switch (choice)
		{
		case 0://退出管理程序
			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://删除离职职工
			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://按照编号排序
			wm.Sort_Emp();
			break;
		case 7://清空所有文档
			wm.Clean_File();
			break;
		default:
			system("cls");
			break;
		}
	}
	system("pause");
	return 0;
}