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