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cpp (基于多态的职工管理系统)

作者:互联网

源文件:
职工管理系统.cpp:

#include<iostream>

#include"WorkerManager.h"
#include<string>
#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;

	worker = new Manager(2, "李四", 2);
	worker->showInfo();
	delete worker;


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

	//实例化对象
	WorkerManager wm;

	int choice = 0;
	while (true)
	{
		//调用展示菜单成员函数

		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:
			wm.Clean_File();
			break;

		default:
			system("cls");
			break;

		}

	}


	



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

manager.cpp:

#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
		<< "\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,并下发任务给员工 " << endl;
}

//获取岗位名称

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

employee.cpp:

#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
		<< "\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;
 }

//获取岗位名称

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

boss.cpp:

#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
		<< "\t职工姓名: " << this->m_Name
		<< "\t岗位: " << this->getDeptName()
		<< "\t岗位职责: 管理公司所有的事务  " << endl;
}

//获取岗位名称

string boss::getDeptName()
{
	return string("boss");
}

头文件:
workerManager.h:

#pragma once  //防止头文件重复包含
#include<iostream> //包含输入输出流头文件
using namespace std;
#include"worker.h"
#include"employee.h"
#include "manager.h"
#include"boss.h"
#include<fstream>
#define FILENAME "empFile.tex"  //宏;FILENAME

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



	//展示菜单
	void Show_Menu();

	//退出系统
	void ExitSystem();


	//记录职工人数
	int m_EmpNum;

	//职工数组指针
	Worker** m_EmpArray;

	//添加职工
	void Add_Emp();

	//保存文件

	void save();

	//判断文件是否为空
	bool m_FileIsEmpty;

	//统计文件中人数
	int get_EmpNum();

	//初始化员工
	void init_Emp();

	//显示职工
	void Show_Emp();

	//删除职工
	int  Del_Emp();

	//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);

	//修改职工
	void Mod_Emp();

	//查找职工
	void Find_Emp();
	
	//按照编号排序
	void Sort_Emp();
	
	//清空文件
	void Clean_File();
	
	//析构函数

	~WorkerManager();
};

worker.h

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


//职工抽象类

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
	int m_DeptId;

	string m_Name;
};

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();

	//职工编号

	int m_Id;

	//职工姓名
	int m_DeptId;

	string m_Name;


};

employee.h:

//普通员工文件

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


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

	//显示个人信息
	virtual void showInfo();

	//获取岗位名称

	virtual string getDeptName() ;

};

boss.h:

#include"worker.h"
#pragma once
//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();

	


};
#include"WorkerManager.h"

WorkerManager::WorkerManager()
{
	//文件为空

	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
		//初始化记录人数
		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;
	}


	//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;
		// 初始化记录人数
		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,并且记录数据

	int num = this->get_EmpNum();
//	cout << "职工人数为: " << 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();

	/*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;
	}*/

}




	









//展示菜单
void WorkerManager::Show_Menu()
{
	cout << "****************************************************************" << endl;

	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;

	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
		//计算添加新空间大小

		int newSize = this->m_EmpNum + addNum;//新空间的大小=原来记录的人数+新增的人数

		//开辟新空间
		Worker** newSpace = new Worker * [newSize];

		//将原来空间下的数据,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 << "请选择该职工的岗位:" << endl;

			cout << "1:普通职工" << endl;
			cout << "1:经理" << endl;
			cout << "1: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;

			}

			//将创建职工的指针,保存到数组中

			newSpace[this->m_EmpNum + i] = worker;


		}
		//释放原有的空间
		delete[]this->m_EmpArray;

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


		//更新 新职工的人数
		this->m_EmpNum = newSize;

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




		//提示添加成功

		cout << "添加成功" << addNum << "名新职工!" << endl;



		//保存数据到文件中

		this->save();

	}
	else {
		cout << "输入数据有误" << 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  ----写文件

	//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)
	{

		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)
		{
			worker = new Employee(id, name, dId);
		}

		else if (dId == 2)
		{
			worker =new  Manager(id, name, dId);
		}
		else
		{
			worker = new  boss(id, name, dId);
		}


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

	}
	ifs.close();




}



//显示职工
void WorkerManager::Show_Emp()
{
	if (this->m_FileIsEmpty)
	{
		cout << "文件不存在或记录为空!" << endl;
	}
	else
	{
		for (int i = 0; i < m_EmpNum; i++)
		{

			//利用多态调用接口
			this->m_EmpArray[i]->showInfo();
		}
	}
	//按任意键清屏
	system("pause");
	system("cls");
}


//删除职工
int 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
		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)//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; i++)
			{
				this->m_EmpArray[i] = this->m_EmpArray[i + 1];

			}
			this->m_EmpNum--;//更新数组中记录人员个数

			//数据同步更新到文件中
			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");

	return 0;
}

//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 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;;
}

//修改职工
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)
		{
			//查找到编号的职工

			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;
			}
			//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");


}


//查找职工
void WorkerManager::Find_Emp()
{
	if (this->m_FileIsEmpty)
	{
		cout << "文件不存在或记录为空!" << endl;
		system("pause");
		system("cls");

	}
	else
	{
		cout << "请输入查找的方式: " << endl;

cout << "1:按职工编号查找" << endl;

cout << "2:按职工姓名查找" << endl;

int select = 0;
cin >> select;
if (select == 1)
{
	//按照编号查找
	int id;
	cout << "请输入查找的职工编号: " << 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)
{
	//按照姓名查找

	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 << "号职工的信息如下"
				<< endl;

			flag = true;
			//调用显示信息接口
			this->m_EmpArray[i]->showInfo();


		}
	}
	if (flag == false)
	{
		cout << "查找失败,查无此人!" << endl;

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

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




}


//按照编号排序
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:按职工编号进行升序" << endl;
		cout << "2:按职工编号进行降序" << 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;
					}
				}

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

			//判断一开始认定 最小值或最大值 是不是 计算的最小值或最大值 ,如果不是 交换数据
			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!排序后的结构为: " << endl;
		this->save();//排序后结果保存在文件中
		this->Show_Emp();//展示所有的职工


		}


	}


//清空文件
void WorkerManager::Clean_File()
{


	cout << "确定清空?" << endl;
	cout << "1:确定" << endl;
	cout << "2:取消" << endl; 

	int select = 0;
	cin >> select;

	if (select == 1)
	{
		//清空文件
		ofstream ofs(FILENAME, ios::trunc);//删除文件后重建
		ofs.close();
		if (this->m_EmpArray != NULL)
		{

			//删除堆区的每一个对象
			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;
	}



	}

标签:cout,管理系统,int,EmpArray,worker,多态,cpp,id,name
来源: https://blog.csdn.net/weixin_51599540/article/details/111412384