1.需求分析以及案例展示
2.创建项目
3.创建管理类
4.菜单功能
5.退出功能
6.创建职工类
#pragma once
#include <iostream>
#include <string>
using namespace std;
//职工抽象基类
class Worker {
public:
//显示个人信息
virtual void showInfo() = 0;
//获取岗位名称
virtual string getDeptName() = 0;
int m_Id;//职工编号
string m_Name;//职工姓名
int m_DeptId;//职工所在部门名称编号
};
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
//员工类
class Employee:public Worker {
public:
//构造函数
Employee(int id, string name, int dId);
//显示个人信息
virtual void showInfo();
//获取职工岗位名称
virtual string getDeptName();
};
#include "employee.h"
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;
}
//获取职工岗位名称
string Employee::getDeptName() {
return string("员工");
}
#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();
//获取职工岗位名称
virtual string getDeptName();
};
#include "manager.h"
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;
}
//获取职工岗位名称
string Manager::getDeptName() {
return string("经理");
}
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
//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();
//获取职工岗位名称
virtual string getDeptName();
};
boss.cpp代码
#include "boss.h"
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:管理公司所有事务" << endl;
}
//获取职工岗位名称
string Boss::getDeptName() {
return string("总裁");
}
7.添加职工
//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;//新空间人数 = 原来记录人数 + 新增人数
//开辟新空间
Worker** newSpace = new Worker * [newSize];
//将原来空间下数据,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;//职工编号
string name;//职工姓名
int dSelect;//部门选择
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;
}
//将创建职工职责,保存到数组中
newSpace[this->m_EmpNum + i] = worker;
}
//释放原有空间
delete[] this->m_EmpArray;
//更改新空间的指向
this->m_EmpArray = newSpace;
//更新新的职工人数
this->m_EmpNum = newSize;
//更新职工不为空标志
this->m_FileIsEmpty = false;
//提示添加成功
cout << "成功添加" << addNum << "名新职工!" << endl;
//保存数据到文件中
this->save();
}
else {
cout << "输入有误" << endl;
}
//按任意键后 清屏回到上级目录
system("pause");
system("cls");
}
8.文件交互-写文件
9.文件交互-读文件
(1)情况一:文件未创建
(2)情况二:文件存在且数据为空
(3)情况三:文件存在且保存职工数据
10.显示职工
11.删除职工
12.修改职工
13.查找职工
14.排序
15.清空文件
16.总代码
1.职工管理系统.cpp
#include <iostream>
using namespace std;
#include "workerManager.h"
#include "worker.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"
int main() {
//实例化对象
WorkerManager wm;
int choice = 0;
while (true) {
//展示菜单
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: //添加职工
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: //清空文件
wm.Clean_File();
break;
default:
system("cls");
break;
}
}
system("pause");
return 0;
}
2.wokerManager.cpp
#include "workerManager.h"
//构造函数
WorkerManager::WorkerManager() {
ifstream ifs(FILENAME, ios::in);//读文件
//1.文件不存在
if (!ifs.is_open()) {
//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;
//初始化文件记为空
this->m_FileIsEmpty = true;
//关闭文件
ifs.close();
return; //退出当前函数
}
//2.文件存在,并且没有记录数据
char ch;
ifs >> ch;
if (ifs.eof()) { //eof end of file
this->m_EmpNum = 0;
this->m_FileIsEmpty = true;
this->m_EmpArray = NULL;
ifs.close();
return;
}
//3.文件存在,并且记录数据
int num = this->get_EmpNum();
this->m_EmpNum = num;
//开辟空间
this->m_EmpArray = new Worker *[this->m_EmpNum];
//将文件在的数据,存到数组中
this->init_Emp();
}
//析构函数
WorkerManager::~WorkerManager() {
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;
}
}
//展示菜单
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
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;//新空间人数 = 原来记录人数 + 新增人数
//开辟新空间
Worker** newSpace = new Worker * [newSize];
//将原来空间下数据,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;//职工编号
string name;//职工姓名
int dSelect;//部门选择
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;
}
//将创建职工职责,保存到数组中
newSpace[this->m_EmpNum + i] = worker;
}
//释放原有空间
if (this->m_EmpArray != NULL)
{
delete[] this->m_EmpArray;
this->m_EmpArray = NULL;
this->m_EmpNum = 0;
this->m_FileIsEmpty = true;
}
//更改新空间的指向
this->m_EmpArray = newSpace;
//更新新的职工人数
this->m_EmpNum = newSize;
//更新职工不为空标志
this->m_FileIsEmpty = false;
//提示添加成功
cout << "成功添加" << addNum << "名新职工!" << endl;
//保存数据到文件中
this->save();
}
else {
cout << "输入有误" << 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();
}
//统计文件在人数
int WorkerManager::get_EmpNum() {
ifstream ifs(FILENAME, ios::in); //打开文件 读文件
int id;
string name;
int dId;
int num = 0;
while (ifs >> id && ifs >> name && ifs >> dId) {
//统计职工人数变量
num++;
}
return num;
}
//初始化员工
void WorkerManager::init_Emp() {
ifstream ifs(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) { //普通职工
worker = new Employee(id, name, dId);
}
else if (dId == 2) { //经理
worker = new Manager(id, name, dId);
}
else { //老板
worker = new Boss(id, name, dId);
}
this->m_EmpArray[index] = worker;
index++;
}
ifs.close();//关闭文件
}
//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();
}
}
system("pause");
system("cls");
}
//按照职工编号判断职工是否存在,若存在返回职工在数组中的位置,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) {
index = i;
break;
}
}
return index;
}
//删除职工
void WorkerManager::Del_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或记录为空!" << endl;
}
else {
//按职工编号删除
cout << "请输入所要删除职工的编号:" << endl;
int id = 0;
cin >> id;
int index = this->IsExist(id);
if (index != -1) { //说明index上位置数据需要删除
for (int i = index; i < this->m_EmpNum - 1; i++) {
this->m_EmpArray[i] = this->m_EmpArray[i+1];
}
this->m_EmpNum--;
this->save(); //删除后数据同步到文件中
cout << "删除成功!" << endl;
}
else {
cout << "删除失败,未找到该职工" << endl;
}
}
//按任意键继续 并且清屏
system("pause");
system("cls");
}
//修改职工信息
void WorkerManager::Mod_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或记录为空" << endl;
}
else {
cout << "请输入所要修改职工的编号:" << endl;
int id=0;
cin >> id;
int index = this->IsExist(id);
if (index != -1) {
//查找到编号的职工
delete this->m_EmpArray[index];
int new_id = 0;
string new_name = "";
int new_dId = 0;
cout << "查到:" << id << "号职工,请输入新职工号:" << endl;
cin >> new_id;
cout << "请输入新的姓名:" << endl;
cin >> new_name;
cout << "请输入的岗位:" << endl;
cout << "1、普通职工" << endl;
cout << "2、经理" << endl;
cout << "3、老板" << endl;
cin >> new_dId;
Worker* worker = NULL;
switch (new_dId)
{
case 1: {
worker=new Employee(new_id,new_name,new_dId);
}
break;
case 2: {
worker = new Manager(new_id, new_name, new_dId);
}
break;
case 3: {
worker = new Boss(new_id, new_name, new_dId);
}
break;
default:
break;
}
//更改数据 到数组中
this->m_EmpArray[index] = worker;
cout << "修改成功!" << endl;
//保存到文件中
this->save();
}
else {
cout << "修改失败,未能找到该职工" << endl;
}
}
//按任意键继续 并且清屏
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;
}
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) {
//按姓名查找
string name;
cout << "请输入查找职工的姓名:" << 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 << "输入选型有误!" << endl;
}
}
//按任意键继续,清屏
system("pause");
system("cls");
}
//排序职工
void WorkerManager::Sort_Emp() {
if (m_FileIsEmpty) {
cout << "文件不存在或记录为空!" << endl;
//按任意键继续,清屏
system("pause");
system("cls");
}
else {
cout << "请选择职工编号排序方式:" << endl;
cout << "1、职工编号升序排序" << endl;
cout << "2、职工编号降序排序" << endl;
int select = 0;
cin >> select;
if (select != 1 && select != 2) { //输入指令不正确
cout << "输入有误!" << endl;
//按任意键继续,清屏
system("pause");
system("cls");
return;
}
//利用选择排序方式
for (int i = 0; i < this->m_EmpNum-1; i++) {
int minOrMax = i;
for (int j = i + 1; j < this->m_EmpNum; j++) {
if (select == 1) { //升序排序
if (this->m_EmpArray[minOrMax]->m_Id > this->m_EmpArray[j]->m_Id) {
minOrMax = j;
}
}
if (select == 2) { //降序排序
if (this->m_EmpArray[minOrMax]->m_Id < this->m_EmpArray[j]->m_Id) {
minOrMax = j;
}
}
}
if (minOrMax != i) { //将最大值前移
Worker* temp = m_EmpArray[i];
m_EmpArray[i] = m_EmpArray[minOrMax];
m_EmpArray[minOrMax] = temp;
}
}
this->save(); //保存文件
cout << "排序完成,排序后结果为:" << endl;
this->Show_Emp(); //已经有清屏函数了,下面不需要外加了
}
}
//清空文件
void WorkerManager::Clean_File() {
cout << "确定清空文件嘛?" << endl;
cout << "1、确定" << endl;
cout << "2、返回" << endl;
int select = 0;
cin >> select;
if (select != 1 && select != 2) { //输入指令不正确
cout << "输入有误!" << endl;
//按任意键继续,清屏
system("pause");
system("cls");
return;
}
if (select == 2)
{
system("cls");
return;
}
else {
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];
}
}
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");
}
3.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; //使用标准命名空间
#include "worker.h"
#include "employee.h"
#include "manager.h"
#include "boss.h"
#include <fstream>
#define FILENAME "empFile.txt"
class WorkerManager {
public:
//构造函数
WorkerManager();
//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 标志
bool m_FileIsEmpty;
//统计文件中人数
int get_EmpNum();
//初始化员工
void init_Emp();
//显示员工
void Show_Emp();
//删除职工
void Del_Emp();
//按照职工编号判断职工是否存在,若存在返回职工在数组中的位置,不存在返回-1
int IsExist(int id);
//修改职工
void Mod_Emp();
//查找职工
void Find_Emp();
//排序职工
void Sort_Emp();
//清空文件
void Clean_File();
//析构函数
~WorkerManager();
};
4.worker.h
#pragma once
#include <iostream>
#include <string>
using namespace std;
//职工抽象基类
class Worker {
public:
//显示个人信息
virtual void showInfo() = 0;
//获取岗位名称
virtual string getDeptName() = 0;
int m_Id;//职工编号
string m_Name;//职工姓名
int m_DeptId;//职工所在部门名称编号
};
5.emloyee.h
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
//员工类
class Employee:public Worker {
public:
//构造函数
Employee(int id, string name, int dId);
//显示个人信息
virtual void showInfo();
//获取职工岗位名称
virtual string getDeptName();
};
6.employ.cpp
#include "employee.h"
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;
}
//获取职工岗位名称
string Employee::getDeptName() {
return string("员工");
}
7.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();
//获取职工岗位名称
virtual string getDeptName();
};
8.manager.cpp
#include "manager.h"
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;
}
//获取职工岗位名称
string Manager::getDeptName() {
return string("经理");
}
9.boss.h
#pragma once
#include <iostream>
using namespace std;
#include "worker.h"
//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();
//获取职工岗位名称
virtual string getDeptName();
};
10.boss.cpp
#include "boss.h"
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:管理公司所有事务" << endl;
}
//获取职工岗位名称
string Boss::getDeptName() {
return string("总裁");
}