基于C++的职工管理系统,C++语言结课大作业（黑马教程）

文件结构

worker.h

#pragma once
#include
using namespace std;
#include

//职工抽象类 不需要实现
class Worker {
public:
	//显示个人信息声明
	virtual void showInfo() = 0;
	//获取岗位名称声明
	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;
};

employee.h

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

//继承 重写虚函数
class Employee : public Worker {
public:
	//构造函数声明
	Employee(int id, string name, int dId);
	//显示个人信息声明
	virtual void showInfo();
	//获取岗位名称声明
	virtual string getDeptName();
};

employee.cpp

#include "employee.h"

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

//显示个人信息实现
void Employee::showInfo() {
	cout << "员工编号：" << this->m_Id
		<< "t员工姓名：" << this->m_Name
		<< "t        岗位：" << this->getDeptName()
		<< "t岗位职责：完成经理交给的任务" << endl;
}
//获取岗位名称实现
string Employee::getDeptName() {
	return  "员工";
}

manager.h

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

//继承 重写虚函数
class Manager : public Worker {
public:
	//构造函数声明
	Manager(int id, string name, int dId);
	//显示个人信息声明
	virtual void showInfo();
	//获取岗位名称声明
	virtual string getDeptName();
};

manager.cpp

#include "manager.h"

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

//显示个人信息实现
void Manager::showInfo() {
	cout << "员工编号：" << this->m_Id
		<< "t员工姓名：" << 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;
}
//获取岗位名称实现
string Manager::getDeptName() {
	return  "经理";
}

boss.h

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

//继承 重写虚函数
class Boss : public Worker {
public:
	//构造函数声明
	Boss(int id, string name, int dId);
	//显示个人信息声明
	virtual void showInfo();
	//获取岗位名称声明
	virtual string getDeptName();
};

boss.cpp

#include "boss.h"

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

//显示个人信息实现
void Boss::showInfo() {
	cout << "员工编号：" << this->m_Id
		<< "t员工姓名：" << this->m_Name
		<< "t岗位：" << this->getDeptName()
		<< "t岗位职责：管理公司所有事务" << endl;
}
//获取岗位名称实现
string Boss::getDeptName() {
	return  "老板";
}

workManager.h

#pragma once//防止头文件重复包含
#include
using namespace std;
#include "worker.h"
#include
#define FILENAME "empFile.txt"//操作文件的路径


class WorkManager {

public:
	//头文件中进行声明
	//构造函数声明
	WorkManager();
	//菜单功能声明
	void Show_Menu();
	//退出系统声明
	void ExitSystem();

	//记录职工人数
	int m_EmpNum;
	//职工数组指针
	Worker** m_EmpArray;

	//添加职工声明
	void Add_Emp();
	//将员工信息保存到文件中去
	void save();

	//标志文件是否为空
	bool m_FileIsEmpty;

	//统计文件中的信息个数声明
	int get_EmpNum();
	//将文件中的信息初始化到内存数组中去声明
	void init_Emp();

	//显示员工的信息声明
	void show_Emp();

	//删除员工的声明
	void Del_Emp();
	//判断员工是否存在声明，如果存在返回员工所在数组中的位置，不存在返回-1
	int isExist(int id);

	//修改员工声明
	void mod_Emp();

	//查找员工的编号声明
	void find_Emp();
	//排序的声明
	void sort_Emp();
	//清空文件
	void clean_File();
	//析构函数声明
	~WorkManager();

};

workManager.cpp

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


//构造函数的实现
WorkManager::WorkManager() {

	//分三种情况去初始化属性
	ifstream ifs;
	ifs.open(FILENAME, ios::in);
	//1.文件不存在
	if (!ifs.is_open()) {
		cout << "文件不存在" << endl;
		//初始化属性
		this->m_EmpNum = 0;
		this->m_EmpArray = NULL;
		this->m_FileIsEmpty = true;
		ifs.close();
		return;
	}
	//2.文件存在，内容为空
	char ch;
	ifs >> ch;
	if (ifs.eof()) {
		cout << "文件存在,但为空" << endl;
		//初始化属性
		this->m_EmpNum = 0;
		this->m_EmpArray = NULL;
		this->m_FileIsEmpty = true;
		ifs.close();
		return;
	}
	//3.文件存在，且不为空
	int num=this->get_EmpNum();
	//cout << num << endl;
	this->m_EmpNum = num;

	//初始化空间
	this->m_EmpArray = new Worker*[this->m_EmpNum];
	//调用初始化函数
	this->init_Emp();

	//测试代码
	//for (int i = 0; i < m_EmpNum; i++)
	//{
	//	cout << "职工号： " << this->m_EmpArray[i]->m_Id
	//		<< " 职工姓名： " << this->m_EmpArray[i]->m_Name
	//		<< " 部门编号： " << this->m_EmpArray[i]->m_DeptId << endl;
	//}	
}
//统计文件中的信息个数实现
int WorkManager::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++;
	}
	return num;
}
//将文件中的信息初始化到内存数组中去实现
void WorkManager::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 if (dId == 3) {
			worker = new Boss(id, name, dId);
		}
		this->m_EmpArray[index] = worker;
		index++;

	}
	ifs.close();
}

//展示菜单功能的实现
void WorkManager::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;
}

//退出系统功能实现
void WorkManager::ExitSystem() {
	cout << "欢迎下次使用" << endl;
	system("pause");
	exit(0);
}

//将员工信息保存到文件的函数实现
void WorkManager::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();
}

//添加职工实现
void WorkManager::Add_Emp() {
	cout << "请输入添加职工的数量" << endl;
	int addNum = 0;//保存数量
	cin >> addNum;
	if (addNum > 0) {

		//计算新的添加空间大小
		int newSize = this->m_EmpNum + addNum;

		//开辟新空间
		Worker** newSpace = new Worker*[newSize];
		//将原来的数据拷贝进去
		if (this->m_EmpArray != NULL) {
			for (int i = 0; i < this->m_EmpNum; i++) {
				newSpace[i] = this->m_EmpArray[i];
			}
		}

		//添加新的内容
		for (int i = 0; i < addNum; i++) {
			int id;
			string name;
			int dId;
			//为了保证职工的编号唯一
			while (true) {
				cout << "请输入第 " << i + 1 << " 个新职工的编号：" << endl;
				cin >> id;
				if (this->isExist(id)!=-1) {
					cout << "该员工编号已经存在，请重新输入" << endl;
				}
				else {
					break;
				}
			}
			
			
			cout << "请输入第 "<> name;
			cout << "请选择该职工岗号：" << endl;
			cout<<"1.普通职工"<> dId;

			Worker* worker = NULL;
			switch (dId)
			{
			case 1:
				worker = new Employee(id,name,dId);
				break;
			case 2:
				worker = new Manager(id, name, dId);
				break;
			case 3:
				worker = new Boss(id, name, dId);
				break;
			default:
				break;
			}

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

		//释放原有的空间
		delete[] this->m_EmpArray;
		//更新条件
		this->m_EmpArray = newSpace;
		this->m_EmpNum = newSize;
		cout << "成功添加 "<save();
		//更新文件中职工不为空的一个标志
		this->m_FileIsEmpty = false;

	}
	else {
		cout << "数据有误" << endl;
	}
	system("pause");
	system("cls");
}

//显示员工的信息实现
void  WorkManager:: 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 < this->m_EmpNum; i++) {
			//利用多态调用接口
			this->m_EmpArray[i]->showInfo();
		}
	}
	system("pause");
	system("cls");

}

//删除员工的实现
void WorkManager::Del_Emp() {
	if (this->m_FileIsEmpty) {
		cout << "文件为空，或者文件不存在" << endl;
	}
	else {
		//按照职工的编号删除职工
		cout << "请输入想要删除的员工的编号" << 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--;
			//同步更新到文件中去
			this->save();
			cout << "删除成功" << endl;
		}
		else {
			cout << "未找到该职工" << endl;
		}


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

}
//判断员工是否存在实现，如果存在返回员工所在数组中的位置，不存在返回-1
int WorkManager::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;
		}
	}
	return index;
}

void WorkManager:: mod_Emp() {
	if (this->m_FileIsEmpty) {
		cout << "文件不存在 或者文件为空" << 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 newTd = 0;
			string newName = "";
			int dSelect = 0;
			cout << "查找到：" << id << "号职工，请输入新的职工号：" << endl;
			cin >> newTd;
			cout << "查找到：" << id << "号职工，请输入新的姓名：" << endl;
			cin >> newName;
			cout << "查找到：" << id << "号职工，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(newTd,newName,dSelect);
				break;
			case 2:
				worker = new Manager(newTd, newName, dSelect);
				break;
			case 3:
				worker = new Boss(newTd, newName, dSelect);
				break;
			default:
				break;
			}

			//更新 
			this->m_EmpArray[ret] = worker;
			cout << "修改成功" << endl;
			this->save();


		}
		else {
			cout << "未找到该职工" << endl;
		}
	}
	system("pause");
	system("cls");
}


//查找员工的编号
void WorkManager::find_Emp() {
	if (this->m_FileIsEmpty) {
		cout << "文件为空，或者文件不存在" << endl;
	}
	else {
		cout << "请输入查找的方式：" <> select;
		if (select == 1) {
			//按照编号查找
			cout << "请输入职工查找的编号：" << endl;
			int id;
			cin >> id;
			int ret = this->isExist(id);
			if (ret != -1) {
				cout << "查找成功，信息如下" << endl;
				this->m_EmpArray[ret]->showInfo();
			}
			else {
				cout << "该员工不存在" << endl;
			}
		}
		else if (select == 2) {
			//按照姓名查找
			cout << "请输入职工查找的姓名：" << endl;
			string name;
			cin >> name;
			cout << endl;
			bool flag = false;
			for (int i = 0; i < this->m_EmpNum; i++) {
				if (this->m_EmpArray[i]->m_Name == name) {
					flag = true;
					cout << "查找成功" << endl;
					cout << "职工号为：" << this->m_EmpArray[i]->m_Id << endl;
					cout << "信息如下" << endl;
					this->m_EmpArray[i]->showInfo();
					cout << endl;
				}
			}
			if (flag == false) {
				cout << "查无此人" << endl;
			}
		}
		else {
			cout << "输入选项有误" << endl;
		}


	}
	system("pause");
	system("cls");
}
//排序的实现
void WorkManager:: sort_Emp() {
	if (this->m_FileIsEmpty) {
		cout << "文件为空，或者文件不存在" << endl;
		system("pause");
		system("cls");
	}
	else {

		cout << "请输入排序的方式：" << endl;
		cout << "1.职工的编号升序" << endl;
		cout << "2.职工的编号降序" << endl;
		int select = 0;
		cin >> select;
		for (int i = 0; i < this->m_EmpNum; i++) {
			int minOrMax = i;

			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;
					}
				}
			}
			if (minOrMax != i) {
				Worker *temp = this->m_EmpArray[minOrMax];
				this->m_EmpArray[minOrMax] = this->m_EmpArray[i];
				this->m_EmpArray[i] = temp;
			}
			
		}

		cout << "排序成功，排序后的结果为" << endl;
		//this->save();
		this->show_Emp();
	}
	
}
void WorkManager::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);
		ofs.close();

		if (this->m_EmpArray != NULL) {
			for (int i = 0; i < this->m_EmpNum; i++) {
				delete this->m_EmpArray[i];
				this->m_EmpArray[i] = NULL;
			}

			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");
}
//析构函数的实现
WorkManager::~WorkManager() {
	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;
	}
}

职工管理系统.cpp

#include
#include
using namespace std;
#include "workManager.h"
#include "worker.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"

int main() {

	WorkManager wm;
	int choice = 0;//记录用户的选项

	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
			wm.ExitSystem();
			break;
		case 1://增加
			wm.Add_Emp();
			break;
		case 2://显示
			wm.show_Emp();
			break;
		case 3://删除
			wm.Del_Emp();
			break;
		case 4://修改
			wm.mod_Emp();
			break;
		case 5://查找
			wm.find_Emp();
			break;
		case 6://排序
			wm.sort_Emp();
			break;
		case 7://清空文档
			wm.clean_File();
			break;
		default:
			system("cls");
			break;
		}
	}

	system("pause");
	return 0;
}

基于C++的职工管理系统,C++语言结课大作业（黑马教程）

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