职工管理系统需求
职工管理系统可以用来管理公司内所有员工的信息,本篇文章主要利用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,并下发任务给员工
- 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:
- 退出管理程序: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,防止误判)
各文件代码
首先我们看一下这个系统的.h 文件和.cpp 文件都有哪些:
#include <iostream>
#include "workerManager.h"
#include "employee.h"
#include "worker.h"
#include "manager.h"
#include "boss.h"
using namespace std;
int main()
{
WorkerManager wm;
int choice = 0;
while (1)
{
wm.Show_Menu();
cout << "请输入您的选择:" << 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.Cleam_Emp();
break;
default:
system("cls");
break;
}
}
system("pause");
return 0;
}
#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_dept_id;
};
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
class Boss :public Worker
{
public:
Boss(int id, string name, int did);
void ShowInfo();
string GetDeptName();
};
#include "boss.h"
Boss::Boss(int id, string name, int did)
{
this->m_id = id;
this->m_name = name;
this->m_dept_id = did;
}
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");
}
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
class Employee :public Worker
{
public:
Employee(int id, string name, int did);
void ShowInfo();
string GetDeptName();
};
#include "employee.h"
Employee::Employee(int id, string name, int did)
{
this->m_id = id;
this->m_name = name;
this->m_dept_id = 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:完成经理交给的任务"
<< endl;
}
string Employee::GetDeptName()
{
return string("普通员工");
}
#pragma once
#include <iostream>
#include "worker.h"
using namespace std;
class Manager :public Worker
{
public:
Manager(int id, string name, int did);
void ShowInfo();
string GetDeptName();
};
#include "manager.h"
Manager::Manager(int id, string name, int did)
{
this->m_id = id;
this->m_name = name;
this->m_dept_id = 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:完成老板交给的任务,并下发任务给员工"
<< endl;
}
string Manager::GetDeptName()
{
return string("经理");
}
#pragma once
#include <iostream>
#include "worker.h"
#include "employee.h"
#include "boss.h"
#include "manager.h"
#include <fstream>
using namespace std;
#define FILENAME "empfile.txt"
class WorkerManager
{
public:
WorkerManager();
void Show_Menu();
void ExitSystem();
void Add_Emp();
~WorkerManager();
void save();
int get_EmpNum();
void Init_Emp();
void Show_Emp();
int isExist(int id);
void Del_Emp();
void Mod_Emp();
void find_Emp();
void Sort_Emp();
void Cleam_Emp();
bool m_FileIsEmpty;
int m_EmpNum;
Worker** m_EmpArray;
};
#include "workerManager.h"
WorkerManager::WorkerManager()
{
ifstream ifs;
ifs.open(FILENAME, ios::in);
if (!ifs.is_open())
{
cout << "文件不存在" << endl;
this->m_EmpNum = 0;
this->m_EmpArray = NULL;
this->m_FileIsEmpty = true;
ifs.close();
return;
}
char ch;
ifs >> ch;
if (ifs.eof())
{
cout << "文件为空" << endl;
this->m_EmpNum = 0;
this->m_EmpArray = NULL;
this->m_FileIsEmpty = true;
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::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_dept_id << endl;
}
ofs.close();
}
WorkerManager::~WorkerManager()
{
if (this->m_EmpArray != NULL)
{
delete[]this->m_EmpArray;
this->m_EmpArray = NULL;
}
}
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;
}
void WorkerManager::ExitSystem()
{
cout << "欢迎下次再使用" << endl;
system("pause");
exit(0);
}
void WorkerManager::Add_Emp()
{
cout << "请输入添加职工数量:" << 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 << "请选择新职工岗位:" << 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;
this->m_FileIsEmpty = false;
save();
cout << "成功添加" << addNum << "名新职工!" << endl;
}
else
{
cout << "输入数据有误!!" << endl;
}
system("pause");
system("cls");
}
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++;
}
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;
}
ifs.close();
}
void WorkerManager::Show_Emp()
{
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();
}
}
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;
}
}
return index;
}
void WorkerManager::Del_Emp()
{
if (this->m_FileIsEmpty)
{
cout << "文件不存在或者记录为空!!!" << endl;
}
else
{
cout << "请输入想要删除职工的编号:" << 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--;
this->save();
cout << "删除职工成功!!" << 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 << "文件不存在或者记录为空!!" << endl;
}
else
{
cout << "请输入所要修改职工的编号:" << 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 << "查到编号为" << id << "的职工" << endl;
cout << "请输入新的职工编号:" << endl;
cin >> newid;
cout << "请输入新的职工姓名:" << endl;
cin >> newname;
cout << "请输入新的职工岗位:" << 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!!" << endl;
this->save();
}
else
{
cout << "没有查找到你所要修改职工的编号!!!" << endl;
}
}
system("pause");
system("cls");
}
void WorkerManager::find_Emp()
{
if (this->m_FileIsEmpty)
{
cout << "文件不存在或者记录为空" << endl;
}
else
{
cout << "请输入查找方法:" << endl;
cout << "1-按照职工编号进行查找" << endl;
cout << "2-按照职工姓名进行查找" << endl;
int select = 0;
cin >> select;
if (select == 1)
{
int id;
cout << "请输入查找的编号:" << endl;
cin >> id;
int ret = this->isExist(id);
if (ret != -1)
{
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)
{
string name;
cout << "请输入查找的职工姓名:" << endl;
cin >> name;
bool flag = false;
for (int i = 0; i < m_EmpNum; i++)
{
if (this->m_EmpArray[i]->m_name == name)
{
cout << "查找成功!!该职工信息如下:" << endl;
flag = true;
this->m_EmpArray[i]->ShowInfo();
}
}
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 << "文件不存在或者记录为空" << endl;
system("pause");
system("cls");
}
else
{
cout << "请选择排序方式:" << endl;
cout << "1-按照职工编号进行升序排序" << endl;
cout << "2-按照职工编号进行降序排序" << 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)
{
if (this->m_EmpArray[j]->m_id < this->m_EmpArray[minOrmax]->m_id)
{
minOrmax = j;
}
}
else
{
if (this->m_EmpArray[j]->m_id > this->m_EmpArray[minOrmax]->m_id)
{
minOrmax = j;
}
}
}
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();
this->Show_Emp();
}
}
void WorkerManager::Cleam_Emp()
{
cout << "确定清空?" << endl;
cout << "1-确定" << 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");
}
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