管理系统需求
职工管理系统可以用来管理公司所有员工的信息
主要利用C++来实现一个基于多态的职工管理系统
公司中职工分为三类：普通员工、经理、老板，显示信息时，需要显示职工编号、职工姓名、职工岗位以及职责
普通员工职责：完成经理交给的任务
经理职责：完成老板交给的任务，并下发给员工
老板职责：管理公司所有事务
管理系统中需要实现的功能如下：
- 退出管理系统：退出当前管理系统
- 增加职工信息：实现批量添加职工功能，将信息录入到文件中，职工信息为：职工编号、姓名、部门编号
- 显示职工信息：显示公司内部所有职工的信息
- 删除离职职工：按照编号删除指定的职工
- 修改职工信息：按照编号修改职工个人信息
- 查找职工信息：按照职工的编号或者职工的姓名进行查找相关的人员信息
- 按照编号排序：按照职工编号，进行排序，排序规则由用户指定
- 清空所有文档：清空文件中记录的所有职工信息（清空前需要再次确认，防止误删）
创建管理类
管理类负责的内容如下：
- 与用户的沟通菜单界面
- 对职工增删改查的操作
- 与文件的读写操作
创建文件
在头文件和源文件的文件夹中分别创建workerManager.h和workerManager.cpp文件
头文件实现
具体代码如下：
#pragma once
#include <iostream>
using namespace std;class workerManager {
public:workerManager();~workerManager();
};
源文件实现
具体代码如下：
#include "workerManager.h"workerManager::workerManager() {}workerManager::~workerManager() {}
菜单功能
功能描述：与用户的沟通界面
添加成员函数
在管理类workerManager.h中添加成员函数void show_Menu();
具体代码如下：
**#pragma once
#include <iostream>
using namespace std;class workerManager {
public:workerManager();void show_Menu();~workerManager();
};
在管理类workerManager.cpp中实现成员函数void show_Menu();
整体代码如下：
#include "workerManager.h"workerManager::workerManager() {}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.删除离职员工 *******" << endl;cout << "******* 4.修改职工信息 *******" << endl;cout << "******* 5.查找职工信息 *******" << endl;cout << "******* 6.查找编号排序 *******" << endl;cout << "******* 7.清空所有文档 *******" << endl;cout << "******************************" << endl;cout << endl;
}workerManager::~workerManager() {}
退出功能
提供功能接口
在main函数中提供分支选择，提供每个功能接口
在主文件中的整体代码如下
#include <iostream>
using namespace std;
#include "workerManager.h"int main() {workerManager wm;int choice = 0;while (true) {wm.show_Menu();cout << "输入你的选择" << endl;cin >> choice;switch (choice){case 0:break;case 1:break;case 2:break;case 3:break;case 4:break;case 5:break;case 6:break;case 7:break;default:system("cls");break;}}system("pause");return 0;
}
实现退出功能
在workerManager.h中提供退出系统的成员函数void exitSystem();
在workerManager.cpp中实现该函数，具体代码如下
#include "workerManager.h"workerManager::workerManager() {}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.删除离职员工 *******" << endl;cout << "******* 4.修改职工信息 *******" << endl;cout << "******* 5.查找职工信息 *******" << endl;cout << "******* 6.查找编号排序 *******" << 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);
}workerManager::~workerManager() {}
创建职工类
创建职工抽象类
职工的分类为：普通员工、经理、老板
将三种职工抽象到一个类(worker)中，利用多态管理不同职工种类
职工的属性为：职工编号、职工姓名、职工所在部门编号
职工的行为为：岗位职责信息描述，获取岗位名称
头文件文件夹下，创建文件worker.h文件并且添加如下代码：
#pragma once
#include <iostream>
#include <string>
using namespace std;class Worker {
public:virtual void showInfo() = 0;virtual string getDeptName() = 0;int m_Id;string m_Name;int m_DeptId;
};
创建普通员工类
普通员工类继承职工抽象类，并重写父类中纯虚函数
在头文件和源文件的文件夹下分别创建employee.h和employee.cpp文件
employee.h中代码如下：
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"class Employee :public Worker {
public:Employee(int id, string name, int dId);virtual void showInfo();virtual string getDeptName();
};
employee.cpp中代码如下：
#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岗位职责：完成经理交代的任务" << endl;
}string Employee::getDeptName() {return string("员工");
}
创建经理类
经理类继承职工抽象类，并重写父类中纯虚函数，和普通员工类似
在头文件和源文件的文件夹下分别创建manager.h和manager.cpp文件
manager.h中代码如下：
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"class Manager :public Worker {
public:Manager(int id, string name, int dId);virtual void showInfo();virtual string getDeptName();
};
manager.cpp中代码如下：
#include "manager.h"Manager::Manager(int id, string name, int dId) {this->m_Name = name;this->m_Id = id;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岗位职责：完成老板交代的任务，下发任务给员工" << endl;
}string Manager::getDeptName() {return string("经理");
}
创建老板类
老板类继承职工抽象类，并重写父类中纯虚函数，和普通员工类似
在头文件和源文件的文件夹下分别创建boss.h和boss.cpp文件
boss.h中代码如下：
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"class Boss :public Worker {
public:Boss(int id, string name, int dId);virtual void showInfo();virtual string getDeptName();
};
boss.cpp中代码如下：
#include "boss.h"Boss::Boss(int id, string name, int dId) {this->m_DeptId = dId;this->m_Id = id;this->m_Name = name;
}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：管理公司所有事务" << endl;
}string Boss::getDeptName() {return string("老板");
}
添加职工
功能描述：批量添加职工，并且保存到文件中
功能分析
分析：
用户在批量创建时，可能会创建不同种类的职工
如果想将不同种类的员工都放入到一个数组中，可以将所有员工的指针维护到一个数组里面
如果想在程序中维护这个不定长度的数组，可以将数组创建到堆区，并利用Worker**的指针维护
功能实现
在WorkerManager.h头文件中添加成员属性代码和add_Emp();函数，具体代码如下
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();~workerManager();int m_EmpNum;Worker** m_EmpArray;
};
在WorkerManager.cpp中实现add_Emp();函数
void workerManager::add_Emp() {cout << "请输入增加职工数量：" << endl;int addNum = 0;cin >> addNum;if (addNum > 0) {int newSize = this->m_EmpNum + addNum;Worker** newspace = new Worker * [newSize];if (this->m_EmpArray != NULL) {for (int i = 0; i < this->m_EmpNum; i++) {newspace[i] = this->m_EmpArray[i];}}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 << "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;}newspace[this->m_EmpNum + i] = worker;}delete[] this->m_EmpArray;this->m_EmpArray = newspace;this->m_EmpNum = newSize;cout << "成功添加" << addNum << "名新职工" << endl;}else {cout << "输入有误" << endl;}system("pause");system("cls");
}
文件交互——写文件
功能描述：对文件进行读写
在上一个添加功能中，只是将所有的数据添加到了内存中，一旦程序结束就无法保存了
因此文件管理类中需要一个与文件进行交互的功能，对于文件进行读写操作
设定文件路径
首先将文件路径，在workerManager.h中添加宏常量，并且包含头文件fstream，并在类中添加成员函数void save()，此时文件代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();~workerManager();int m_EmpNum;Worker** m_EmpArray;
};
保存文件功能实现
此时文件中代码如下：
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();
}workerManager::~workerManager() {}
文件交互——读文件
功能描述：将文件中的内容读取到程序中
虽然实现了添加职工后保存到文件的操作，但是每次开始运行程序，并没有将文件中数据读取到程序中
而应用程序中还有清空文件的需求，因此构造函数初始化数据的情况分为三种：
- 第一次使用，文件未创建
- 文件存在，但是数据被用户清空
- 文件存在，并且保存职工的所有数据
文件未创建
在workerManager.h中添加新的成员属性m_FileIsEmpty标志文件是否为空并修改WorkerManager.cpp中构造函数代码
workerManager.h的文件代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
workerManager.cpp中代码如下：
workerManager::workerManager() {ifstream ifs;ifs.open(FILENAME, ios::in);if (!ifs.is_open()) {this->m_EmpNum = 0;this->m_FileIsEmpty = true;this->m_EmpArray = NULL;ifs.close();return;}
}
文件存在且数据为空
在workerManager.cpp中构造函数追加代码，文件整体代码如下：
workerManager::workerManager() {ifstream ifs;ifs.open(FILENAME, ios::in);if (!ifs.is_open()) {this->m_EmpNum = 0;this->m_FileIsEmpty = true;this->m_EmpArray = NULL;ifs.close();return;}char ch;ifs >> ch;if (ifs.eof()) {this->m_EmpNum = 0;this->m_FileIsEmpty = true;this->m_EmpArray = NULL;ifs.close();return;}
}
文件存在且保存职工数据
获取记录的职工人数
在workerManager.h中添加成员函数int get_EmpNum();，整体代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();void get_EmpNum();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
在workerManager.cpp中实现该函数并在构造函数中追加代码
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;
}
初始化数组
根据职工的数据以及职工数据，初始化workerManager中的Worker** m_EmpArray指针
在WorkerManager.h中添加成员函数void init_Emp();，整体代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();int get_EmpNum();void init_Emp();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
在workerManager.cpp中实现，整体代码如下：
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();
}workerManager::~workerManager() {}
显示职工
功能描述：显示当前所有职工信息
显示职工函数声明
在workerManger.h中添加成员函数void show_Emp();，整体代码如下
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();int get_EmpNum();void init_Emp();void show_Emp();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
显示职工函数实现
在workerManger.cpp中实现成员函数void show_Emp();
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++) {this->m_EmpArray[i]->showInfo();}}system("pause");system("cls");
}
删除职工
功能描述：按照职工的编号进行删除职工操作
删除职工函数声明和职工是否存在声明
在workerManager.h中添加成员函数void del_Emp();和成员是否存在函数int IsExist(int id);，代码如下
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();int get_EmpNum();void init_Emp();void show_Emp();void del_Emp();int IsExist(int id);~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
职工是否存在函数以及删除职工函数实现
workerManger.cpp中代码整体如下
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;}}
}void workerManager::del_Emp() {if (this->m_FileIsEmpty) {cout << "文件不存在或记录为空" << endl;}else {cout << "请输入想要删除的员工编号" << 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");
}
修改职工
功能描述：能够按照职工的编号对职工信息进行修改并保存
修改职工函数声明
在workerManager.h中添加成员函数void Mod_Emp();，整体代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();int get_EmpNum();void init_Emp();void show_Emp();void del_Emp();int IsExist(int id);void Mod_Emp();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
修改职工函数实现
在workerManager.cpp中实现成员函数void Mod_Emp();，整体代码如下：
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" << this->m_EmpArray[ret]->m_DeptId << endl;this->save();}else {cout << "修改失败，查无此人" << endl;}}system("pause");system("cls");
}
查找职工
功能描述：提供两种查找方式，一种按照职工编号，一种按照职工姓名
查找职工函数声明
在workerManager.h中添加成员函数void find_Emp();
查找职工函数实现
workerManager.cpp中整体代码如下：
void workerManager::Find_Emp() {if (this->m_FileIsEmpty) {cout << "文件不存在或为空" << endl;}else {cout << "请输入查找的方式" << 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) {int id;cout << "请输入查找的职工编号" << endl;cin >> id;int ret = IsExist(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) {string name;cout << "请输入查找的姓名" << endl;cin >> name;bool flag = true;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) {cout << "查找失败，查无此人" << endl;}}else {cout << "输入的选项有误" << endl;}}system("pause");system("cls");
}
排序
功能描述：按照职工编号进行排序，排序的顺序由用户指定
排序函数声明
在workerManager.h中添加成员函数void Sort_Emp();
排序函数实现
workerManager.cpp中代码如下
void workerManager::Sort_Emp() {if (this->m_FileIsEmpty) {cout << "文件不存在或为空" << endl;system("pause");system("cls");}else {cout << "请选择排序方式" << endl;cout << "1.按员工号进行升序" << 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;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，排序后的结果为：" << endl;this->save();this->show_Emp();}
}
清空文件
功能描述：将文件中记录数据清空
清空函数声明
在workerManager.h中添加成员函数void Clean_File();
清空函数实现
workerManage.cpp中代码如下：
void workerManager::Clean_File() {cout << "是否清空" << 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++) {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 << "清空成功" << endl;}system("pause");system("cls");
}
整理
workerManager.h整体代码如下：
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"class workerManager {
public:workerManager();void show_Menu();void exitSystem();void add_Emp();void save();int get_EmpNum();void init_Emp();void show_Emp();void del_Emp();int IsExist(int id);void Mod_Emp();void Find_Emp();void Sort_Emp();void Clean_File();~workerManager();int m_EmpNum;Worker** m_EmpArray;bool m_FileIsEmpty;
};
workerManager.cpp整体代码如下
#include "workerManager.h"workerManager::workerManager() {ifstream ifs;ifs.open(FILENAME, ios::in);if (!ifs.is_open()) {this->m_EmpNum = 0;this->m_FileIsEmpty = true;this->m_EmpArray = NULL;ifs.close();return;}char ch;ifs >> ch;if (ifs.eof()) {this->m_EmpNum = 0;this->m_FileIsEmpty = true;this->m_EmpArray = NULL;ifs.close();return;}int num = this->get_EmpNum();this->m_EmpNum = num;this->m_EmpArray = new Worker * [this->m_EmpNum];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.删除离职员工 *******" << endl;cout << "******* 4.修改职工信息 *******" << endl;cout << "******* 5.查找职工信息 *******" << endl;cout << "******* 6.查找编号排序 *******" << 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);
}void workerManager::add_Emp() {cout << "请输入增加职工数量：" << endl;int addNum = 0;cin >> addNum;if (addNum > 0) {int newSize = this->m_EmpNum + addNum;Worker** newspace = new Worker * [newSize];if (this->m_EmpArray != NULL) {for (int i = 0; i < this->m_EmpNum; i++) {newspace[i] = this->m_EmpArray[i];}}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 << "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;}newspace[this->m_EmpNum + i] = worker;}delete[] this->m_EmpArray;this->m_EmpArray = newspace;this->m_EmpNum = newSize;cout << "成功添加" << addNum << "名新职工" << endl;this->save();this->m_FileIsEmpty = false;}else {cout << "输入有误" << endl;}system("pause");system("cls");
}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);}this->m_EmpArray[index] = worker;index++;}ifs.close();
}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++) {this->m_EmpArray[i]->showInfo();}}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;}}
}void workerManager::del_Emp() {if (this->m_FileIsEmpty) {cout << "文件不存在或记录为空" << endl;}else {cout << "请输入想要删除的员工编号" << 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");
}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" << this->m_EmpArray[ret]->m_DeptId << 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 << "文件不存在或为空" << endl;}else {cout << "请输入查找的方式" << 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) {int id;cout << "请输入查找的职工编号" << endl;cin >> id;int ret = IsExist(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) {string name;cout << "请输入查找的姓名" << endl;cin >> name;bool flag = true;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) {cout << "查找失败，查无此人" << endl;}}else {cout << "输入的选项有误" << endl;}}system("pause");system("cls");
}void workerManager::Sort_Emp() {if (this->m_FileIsEmpty) {cout << "文件不存在或为空" << endl;system("pause");system("cls");}else {cout << "请选择排序方式" << endl;cout << "1.按员工号进行升序" << 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;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，排序后的结果为：" << endl;this->save();this->show_Emp();}
}void workerManager::Clean_File() {cout << "是否清空" << 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++) {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 << "清空成功" << endl;}system("pause");system("cls");
}workerManager::~workerManager() {}
职工管理系统.cpp的整体代码如下：
#include <iostream>
using namespace std;
#include "workerManager.h"int main() {workerManager wm;int choice = 0;while (true) {wm.show_Menu();cout << "输入你的选择" << endl;cin >> choice;switch (choice){case 0:wm.exitSystem();break;case 1:wm.add_Emp();break;case 2:wm.show_Emp();break;case 3:wm.del_Emp();break;case 4:wm.Mod_Emp();break;case 5:wm.Find_Emp();break;case 6:wm.Sort_Emp();break;case 7:wm.Clean_File();break;default:system("cls");break;}}system("pause");return 0;
}