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
1、普通员工职责:完成经理交给的任务
2、经理职责:完成老板交给的任务,并下发任务给员工
3、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:
1、退出管理程序:退出当前管理系统
2、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
3、显示职工信息:显示公司内部所有职工的信息
4、删除离职职工:按照编号删除指定的职工
5、修改职工信息:按照编号修改职工个人信息
6、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
7、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
8、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)
界面效果图如下:
以vs2022为例
项目创建完成
管理类内容:
1、与用户交流页面
2、对职工进行增删改查
3、与文件的读写交互
创建两个文件:
源文件:workerManager.cpp
头文件:workerManager.h
#pragma once
#include
using namespace std;
class workerManager {
public:
workerManager();
~workerManager();
};
#include "workerManager.h"
workerManager::workerManager() {
}
workerManager::~workerManager() {
}
在主函数中,常见对象,调用成员方法
在main函数中提供分支选择,提供每个函数的接口
int main() {
workerManager wm;
int chioce;
while (true) {
wm.show_Menu();
cout << "请做出选择(数字):" << endl;
cin >> chioce;
switch (chioce){
case 0 : //退出功能
wm.exitSystem();
break;
case 1: //增加
break;
case 2: //显示
break;
case 3: //删除
break;
case 4: //修改
break;
case 5: //查找
break;
case 6: //排序
break;
case 7: //清空
break;
default:
system("cls");
break;
}
}
职工分为:老板,普通员工,经理
在头文件文件夹下,创建woker.h头文件,编写如下代码:
#pragma once
#include
using namespace std;
class Woker {
public:
//方法
//显示信息
virtual void showInfo() = 0;
virtual string getDeptName() = 0;
//属性
//员工编号
int w_id;
//姓名
string w_name;
//部门编号
int w_deptId;
};
创建员工employee.h头文件和employee.cpp源文件
employee.h代码:
#pragma once
#include
using namespace std;
#include"woker.h"
class Employee :public Woker{
public:
//构造函数
Employee(int id,string name,int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
employee.cpp代码:
#define _CRT_SECURE_NO_WARNINGS 1
#include"employee.h"
//构造函数
Employee::Employee(int id, string name, int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Employee::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:完成经理的任务!" << endl;
}
//获取职位名称
string Employee::getDeptName() {
return string("员工");
}
创建经理manager.h头文件和manager.cpp源文件
manager.h代码:
#pragma once
#include
using namespace std;
#include"woker.h"
//经理类
class Manager :public Woker {
public:
//构造函数
Manager(int id, string name, int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
manager.cpp代码:
#define _CRT_SECURE_NO_WARNINGS 1
#include"manager.h"
//构造函数
Manager::Manager(int id, string name, int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Manager::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:完成老板的任务,并下发任务给员工!" << endl;
}
//获取职位名称
string Manager::getDeptName() {
return string("经理");
}
创建老板boss.h头文件和boss.cpp源文件
boss.h代码:
#pragma once
#include
using namespace std;
#include"woker.h"
//经理类
class Boss :public Woker {
public:
//构造函数
Boss(int id, string name, int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
boss.cpp代码:
#define _CRT_SECURE_NO_WARNINGS 1
#include"boss.h"
//构造函数
Boss::Boss(int id, string name, int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Boss::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:管理公司所有事务!" << endl;
}
//获取职位名称
string Boss::getDeptName() {
return string("总裁");
}
正常显示!
功能描述:批量添加员工,并保存到文件中
如果想将所有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
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
在wokerManager.h头文件中添加成员属性 :
//员工数量
int m_EmpNum;
//员工数组指针
Woker** m_EmpArray;
在wokerManager.cpp源文件构造函数中,初始化属性:
workerManager::workerManager() {
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
}
实现add_Emp()函数
void workerManager::add_Emp() {
cout << "请输入新添加职工的数量(整数):" << endl;
int add_num;
cin >> add_num;
if (add_num > 0) {
//1、计算新空间大小
int newSize = this->m_EmpNum + add_num;
//2、开辟新的空间
Woker** newSpace = new Woker* [newSize];
//3、将原空间的内容放入新空间
if (this->m_EmpArray != NULL) {
for (int j =0 ; j < this->m_EmpNum; j++) {
newSpace[j] = this->m_EmpArray[j];
}
}
//4、输入新的数据
for (int i = 0; i < add_num; i++) {
int id;
string name;
int dselete;
cout << "请输入第" << i + 1 << "个新职员的编号:" << endl;
cin >> id;
cout << "请输入第" << i + 1 << "个新职员的姓名:" << endl;
cin >> name;
cout << "请输入第" << i + 1 << "个新职员的职位(数字):" << endl;
cout << "1、员工" << endl;
cout << "2、经理" << endl;
cout << "3、总裁" << endl;
cin >> dselete;
if (dselete == 1 || dselete == 2 || dselete == 3) {
Woker* woker = NULL;
switch (dselete) {
case 1:
woker = new Employee(id, name, 1);
break;
case 2:
woker = new Manager(id, name, 2);
break;
case 3:
woker = new Boss(id, name, 3);
break;
}
newSpace[this->m_EmpNum + i + 1] = woker;
}
else {
cout << "选择错误!录入失败" << endl;
cin >> dselete;
}
//5、释放原来的空间
delete[] this->m_EmpArray;
//6、更改指针指向
this->m_EmpArray = newSpace;
//7、更新员工个数
this->m_EmpNum = newSize;
//8、提示信息
cout << "添加成功!" << endl;
}
}
else {
cout << "输入有误!" << endl;
}
system("pause");
system("cls");
}
在WorkerManager.cpp的析构函数中,释放堆区数据
workerManager::~workerManager() {
if (this->m_EmpArray!=NULL) {
delete[] this->m_EmpArray;
}
}
功能描述:对文件进行读写
//保存文件
void workerManager::save() {
//2、创建文件流对象
ofstream ofs;
//3、打开文件
ofs.open(FILENAME, ios::out);
//4、写入文件
for (int i = 0; i < this->m_EmpNum; i++) {
ofs << this->m_EmpArray[i]->w_id << " "
<< this->m_EmpArray[i]->w_name << " "
<< this->m_EmpArray[i]->w_deptId << endl;
}
//5、关闭文件
ofs.close();
}
显示成功!
功能描述:将文件中的内容读取到程序
因此构造函数初始化数据的情况分为三种:
1、第一次使用,文件未创建
2、文件存在,但是数据被用户清空
3、文件存在,并且保存职工的所有数据
workerManager.h中添加属性 m_FileIsEmpty,标志文件是否为空
修改workerManager.cpp中构造函数代码
workerManager::workerManager() {
ifstream ifs;
ifs.open(FILENAME,ios::in); //打开文件
//1、文件不存在
if (!ifs.is_open()) {
cout << "文件不存在!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
}
更新workerManager.cpp中构造函数代码
workerManager::workerManager() {
ifstream ifs;
ifs.open(FILENAME,ios::in); //打开文件
//1、文件不存在
if (!ifs.is_open()) {
cout << "文件不存在!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//2、文件存在,数据为空
char ch;
ifs >> ch;
if (ifs.eof()) {
cout << "文件存在,数据为空!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
}
1、获取记录的职工人数
在workerManager.h中添加成员函数 int get_EmpNum();
在workerManager.cpp中实现get_EmpNum()方法
//获取职工数量
int workerManager::get_EmpNum() {
ifstream ifs;
ifs.open(FILENAME,ios::in);
int num = 0;
int id;
string name;
int did;
while(ifs>>id && ifs>>name && ifs>>did) {
num++;
}
return num;
}
更新workerManager.cpp中构造函数代码
workerManager::workerManager() {
ifstream ifs;
ifs.open(FILENAME,ios::in); //打开文件
//1、文件不存在
if (!ifs.is_open()) {
cout << "文件不存在!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//2、文件存在,数据为空
char ch;
ifs >> ch;
if (ifs.eof()) {
cout << "文件存在,数据为空!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//3、文件存在,保存数据
int num1 = get_EmpNum();
this->m_EmpNum = num1;
cout << "职工数量为:" << this->m_EmpNum << endl;
}
2、初始化数组
在workerManager.h中添加成员函数 init_Emp();
在workerManager.cpp中实现init_Emp()方法
//初始化职工数组
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) {
Woker* woker = NULL;
if (did == 1) { //员工
woker = new Employee(id, name, did);
}
else if (did == 2) {//经理
woker = new Manager(id, name, did);
}
else {
woker = new Boss(id, name, did);
}
this->m_EmpArray[index] = woker;
index++;
}
ifs.close();
}
更新workerManager.cpp中构造函数代码
workerManager::workerManager() {
ifstream ifs;
ifs.open(FILENAME,ios::in); //打开文件
//1、文件不存在
if (!ifs.is_open()) {
cout << "文件不存在!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//2、文件存在,数据为空
char ch;
ifs >> ch;
if (ifs.eof()) {
cout << "文件存在,数据为空!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//3、文件存在,保存数据
int num1 = get_EmpNum();
this->m_EmpNum = num1;
cout << "职工数量为:" << this->m_EmpNum << endl;
//创建堆区数据
this->m_EmpArray = new Woker * [this->m_EmpNum];
this->init_Emp();
for (int i = 0; i < this->m_EmpNum;i++) {
cout << "职工编号:" << this->m_EmpArray[i]->w_id
<< " 姓名:" << this->m_EmpArray[i]->w_name
<< " 岗位编号:" << this->m_EmpArray[i]->w_deptId << endl;
}
}
1、不存在
2、存在但为空
3、存在且保存
在workerManager.cpp中实现显示函数
//显示职工信息
void workerManager::show_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者文件为空" << endl;
}
else {
for (int i = 0; i < this->m_EmpNum;i++) {
this->m_EmpArray[i]->showInfo();
}
}
system("pause");
system("cls");
}
功能描述:按照职工的编号进行删除职工操作
在workerManager.cpp中实现显示函数
//判断职工是否存在
//存在返回所占索引,不存在返回-1
int workerManager::isExist(int id) {
int index = -1;
for (int i = 0; i < this->m_EmpNum;i++) {
if (i == id) {
//职工存在
index = i;
break;
}
}
return index;
}
//删除职工
void workerManager::del_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空" << endl;
}
else {
int id = 0;
cout << "请输入你想删除的职工编号:" << endl;
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 -= 1;
this->save();//保存文件
cout << "删除成功!" << endl;
}
else
cout << "该职工不存在" << endl;
}
system("pause");
system("cls");
}
功能描述:能够按照职工编号对职工信息进行修改和保存
//修改职工
void workerManager::mod_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << endl;
}
else{
cout << "请输入你想修改的职工编号:" << endl;
int id;
cin >> id;
int ret = this->isExist(id);
if (ret != -1) {
int newId = 0;
string newName = "";
int newDid = 0;
cout << "查找到编号为:" << 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编号:" << endl;
cout << "1、员工" << endl;
cout << "2、经理" << endl;
cout << "3、总裁" << endl;
cin >> newDid;
Woker* woker = NULL;
switch(newDid) {
case 1:
woker = new Employee(newId, newName, 1);
break;
case 2:
woker = new Manager(newId, newName, 2);
break;
case 3:
woker = new Boss(newId, newName, 3);
break;
}
this->m_EmpArray[ret] = woker;
cout << "修改成功!" << endl;
this->save();
}
else {
cout << "修改失败,该员工不存在" << endl;
}
this->save();
}
system("pause");
system("cls");
}
功能描述:提供两种查找职工方式,
1、按照职工编号
2、按照职工姓名
//查找职工
void workerManager::find_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << 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 selete = 0;
cin >> selete;
switch (selete) {
case 1:
{
int id;
cout << "请输入查找的职工编号:" << endl;
cin >> id;
int ret = this->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;
break;
}
case 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 < this->m_EmpNum;i++) {
if (this->m_EmpArray[i]->w_name == name) {
cout << "查找成功!该职工信息如下:" << endl;
this->m_EmpArray[i]->showInfo();
flag = true;
}
}
if (!flag) {
cout << "查找失败,查无此人" << endl;
}
break;
}
default:
cout << "输入错误!查找失败" << endl;
break;
}
}
system("pause");
system("cls");
}
功能描述:按照职工编号进行排序,排序的顺序由用户指定
1、升序:冒泡排序法
2、降序:快速排序法
在workerManager.cpp中实现成员函数 void sort_Emp();
//排序
void workerManager::sort_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << endl;
}
else{
cout << "请输入你选择的排序方式:" << endl;
cout << "1、按职工编号升序排列" << endl;
cout << "2、按职工编号降序排列" << endl;
int selete = 0;
cin >> selete;
switch (selete) {
case 1:
{
//冒泡排序
for (int i = 0; i < this->m_EmpNum;i++) {
for (int j = this->m_EmpNum - 1; j >= i;j--) {
if (this->m_EmpArray[i]->w_id > this->m_EmpArray[j]->w_id) {
Woker* temp = m_EmpArray[i];
m_EmpArray[i] = m_EmpArray[j];
m_EmpArray[j] = temp;
}
}
}
cout << "冒泡排序升序成功!" << endl;
break;
}
case 2:
{
//快速排序
for (int i = 0; i < this->m_EmpNum; i++) {
int min = i;
for (int j = i + 1; j < this->m_EmpNum;j++) {
if (this->m_EmpArray[min]->w_id < this->m_EmpArray[j]->w_id) {
min = j;
}
}
if ( i != min) {
Woker* temp = m_EmpArray[i];
m_EmpArray[i] = m_EmpArray[min];
m_EmpArray[min] = temp;
}
}
cout << "快速排序降序完成!" << endl;
break;
}
default:
cout << "排序方式输入有误!" << endl;
}
this->save();
cout << "排序成功,排序后结果为:" << endl;
this->show_Emp();
}
}
功能描述:将文件中的记录数据清空
//清空
void workerManager::clean_Emp() {
cout << "确定清空?" << endl;
cout << "1、确定" << endl;
cout << "2、退出" << endl;
int select = 0;
cin >> select;
switch (select)
{
case 1:
{
//打开模式 ios::trunc 如果存在删除文件并重新创建
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;
this->m_EmpNum = 0;
this->m_FileIsEmpty = true;
}
cout << "清空完成!" << endl;
system("pause");
system("cls");
break;
}
case 2:
cout << "已退出,文件未清空!" << endl;
system("pause");
system("cls");
break;
default:
cout << "选择有误!" << endl;
system("pause");
system("cls");
break;
}
}
至此,职工管理系统所有功能完成!
1、boss.h
#pragma once
#include
using namespace std;
#include"woker.h"
//经理类
class Boss :public Woker {
public:
//构造函数
Boss(int id, string name, int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
2、employee.h
#pragma once
#include
using namespace std;
#include"woker.h"
class Employee :public Woker{
public:
//构造函数
Employee(int id,string name, int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
3、manager.h
#pragma once
#include
using namespace std;
#include"woker.h"
//经理类
class Manager :public Woker {
public:
//构造函数
Manager(int id, string name, int dId);
//显示信息
void showInfo();
//获取职位名称
string getDeptName();
};
4、woker.h
#pragma once
#include
using namespace std;
class Woker {
public:
//方法
//显示信息
virtual void showInfo() = 0;
//获取职位名称
virtual string getDeptName() = 0;
//属性
//员工编号
int w_id;
//姓名
string w_name;
//部门编号
int w_deptId;
};
5、wokerManager.h
#pragma once
#include
using namespace std;
#include"woker.h"
class workerManager {
public:
workerManager();
~workerManager();
//展示菜单
void show_Menu();
//退出功能
void exitSystem();
//添加职工
void add_Emp();
//保存文件
void save();
//获取职工数量
int get_EmpNum();
//初始化职工数组
void init_Emp();
//显示职工信息
void show_Emp();
//删除职工
void del_Emp();
//修改职工
void mod_Emp();
//查找职工
void find_Emp();
//排序
void sort_Emp();
//清空
void clean_Emp();
//判断职工是否存在
//存在返回所占索引,不存在返回-1
int isExist(int id);
//属性
//员工数量
int m_EmpNum;
//员工数组指针
Woker** m_EmpArray;
//文件是否为空
bool m_FileIsEmpty;
};
1、boss.cpp
#define _CRT_SECURE_NO_WARNINGS 1
#include"boss.h"
//构造函数
Boss::Boss(int id, string name, int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Boss::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:管理公司所有事务!" << endl;
}
//获取职位名称
string Boss::getDeptName() {
return string("总裁");
}
2、employee.cpp
#define _CRT_SECURE_NO_WARNINGS 1
#include"employee.h"
//构造函数
Employee::Employee(int id, string name,int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Employee::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:完成经理的任务!" << endl;
}
//获取职位名称
string Employee::getDeptName() {
return string("员工");
}
3、main.cpp
#define _CRT_SECURE_NO_WARNINGS 1
#include
using namespace std;
//自定义头文件
#include"workerManager.h"
#include"woker.h"
#include"employee.h"
#include"manager.h"
#include"boss.h"
int main() {
workerManager wm;
int chioce;
while (true) {
wm.show_Menu();
cout << "请做出选择(数字):" << endl;
cin >> chioce;
switch (chioce){
case 0 : //退出功能
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
wm.clean_Emp();
break;
default:
system("cls");
break;
}
}
system("pause");
return 0;
}
4、manager.cpp
#define _CRT_SECURE_NO_WARNINGS 1
#include"manager.h"
//构造函数
Manager::Manager(int id, string name, int dId) {
this->w_id = id;
this->w_name = name;
this->w_deptId = dId;
}
//显示信息
void Manager::showInfo() {
cout << "职工编号:" << this->w_id
<< "\t职工姓名:" << this->w_name
<< "\t岗位:" << this->getDeptName()
<< "\t岗位职能:上传下达!" << endl;
}
//获取职位名称
string Manager::getDeptName() {
return string("经理");
}
5、wokerManager.cpp
#define _CRT_SECURE_NO_WARNINGS 1
#include"workerManager.h"
#include"boss.h"
#include"employee.h"
#include"manager.h"
#include
#define FILENAME "empInfo.txt"
workerManager::workerManager() {
ifstream ifs;
ifs.open(FILENAME,ios::in); //打开文件
//1、文件不存在
if (!ifs.is_open()) {
cout << "文件不存在!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//2、文件存在,数据为空
char ch;
ifs >> ch;
if (ifs.eof()) {
cout << "文件存在,数据为空!" << endl;
//初始化人数
this->m_EmpNum = 0;
//初始化数组指针
this->m_EmpArray = NULL;
//置为空标志为true
this->m_FileIsEmpty = true;
ifs.close();
return;
}
//3、文件存在,保存数据
int num1 = get_EmpNum();
this->m_EmpNum = num1;
cout << "职工数量为:" << this->m_EmpNum << endl;
//创建堆区数据
this->m_EmpArray = new Woker * [this->m_EmpNum];
this->init_Emp();
/*for (int i = 0; i < this->m_EmpNum;i++) {
cout << "职工编号:" << this->m_EmpArray[i]->w_id
<< " 姓名:" << this->m_EmpArray[i]->w_name
<< " 岗位编号:" << this->m_EmpArray[i]->w_deptId << endl;
}*/
}
workerManager::~workerManager() {
if (this->m_EmpArray != NULL) {
for (int i = 0; i < this->m_EmpNum; i++) {
delete this->m_EmpArray[i];
this->m_EmpArray[i] = NULL;
}
}
}
//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
void workerManager::exitSystem() {
cout << "欢迎下次使用" << endl;
system("pause");
exit(0);
}
//保存文件
void workerManager::save() {
//2、创建文件流对象
ofstream ofs;
//3、打开文件
ofs.open(FILENAME,ios::out);
//4、写入文件
for (int i = 0; i < this->m_EmpNum; i++) {
ofs << this->m_EmpArray[i]->w_id << " "
<< this->m_EmpArray[i]->w_name << " "
<< this->m_EmpArray[i]->w_deptId << endl;
}
//5、关闭文件
ofs.close();
}
//获取职工数量
int workerManager::get_EmpNum() {
ifstream ifs;
ifs.open(FILENAME,ios::in);
int num = 0;
int id;
string name;
int did;
while(ifs>>id && ifs>>name && ifs>>did) {
num++;
}
return num;
}
//初始化职工数组
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) {
Woker* woker = NULL;
if (did == 1) { //员工
woker = new Employee(id, name, did);
}
else if (did == 2) {//经理
woker = new Manager(id, name, did);
}
else {
woker = new Boss(id, name, did);
}
this->m_EmpArray[index] = woker;
index++;
}
ifs.close();
}
//显示职工信息
void workerManager::show_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者文件为空" << endl;
}
else {
for (int i = 0; i < this->m_EmpNum;i++) {
this->m_EmpArray[i]->showInfo();
}
}
system("pause");
system("cls");
}
//删除职工
void workerManager::del_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空" << endl;
}
else {
int id = 0;
cout << "请输入你想删除的职工编号:" << endl;
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 -= 1;
this->save();//保存文件
cout << "删除成功!" << endl;
}
else
cout << "该职工不存在" << endl;
}
system("pause");
system("cls");
}
//判断职工是否存在
//存在返回所占索引,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]->w_id == id) {
//职工存在
index = i;
break;
}
}
return index;
}
//修改职工
void workerManager::mod_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << endl;
}
else{
cout << "请输入你想修改的职工编号:" << endl;
int id;
cin >> id;
int ret = this->isExist(id);
if (ret != -1) {
int newId = 0;
string newName = "";
int newDid = 0;
cout << "查找到编号为:" << 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编号:" << endl;
cout << "1、员工" << endl;
cout << "2、经理" << endl;
cout << "3、总裁" << endl;
cin >> newDid;
Woker* woker = NULL;
switch(newDid) {
case 1:
woker = new Employee(newId, newName, 1);
break;
case 2:
woker = new Manager(newId, newName, 2);
break;
case 3:
woker = new Boss(newId, newName, 3);
break;
}
this->m_EmpArray[ret] = woker;
cout << "修改成功!" << endl;
this->save();
}
else {
cout << "修改失败,该员工不存在" << endl;
}
this->save();
}
system("pause");
system("cls");
}
//查找职工
void workerManager::find_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << 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 selete = 0;
cin >> selete;
switch (selete) {
case 1:
{
int id;
cout << "请输入查找的职工编号:" << endl;
cin >> id;
int ret = this->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;
break;
}
case 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 < this->m_EmpNum;i++) {
if (this->m_EmpArray[i]->w_name == name) {
cout << "查找成功!该职工信息如下:" << endl;
this->m_EmpArray[i]->showInfo();
flag = true;
}
}
if (!flag) {
cout << "查找失败,查无此人" << endl;
}
break;
}
default:
cout << "输入错误!查找失败" << endl;
break;
}
}
system("pause");
system("cls");
}
//排序
void workerManager::sort_Emp() {
if (this->m_FileIsEmpty) {
cout << "文件不存在或者数据为空!" << endl;
system("pause");
system("cls");
}
else{
cout << "请输入你选择的排序方式:" << endl;
cout << "1、按职工编号升序排列" << endl;
cout << "2、按职工编号降序排列" << endl;
int selete = 0;
cin >> selete;
switch (selete) {
case 1:
{
//冒泡排序
for (int i = 0; i < this->m_EmpNum;i++) {
for (int j = this->m_EmpNum - 1; j >= i;j--) {
if (this->m_EmpArray[i]->w_id > this->m_EmpArray[j]->w_id) {
Woker* temp = m_EmpArray[i];
m_EmpArray[i] = m_EmpArray[j];
m_EmpArray[j] = temp;
}
}
}
cout << "冒泡排序升序成功!" << endl;
break;
}
case 2:
{
//快速排序
for (int i = 0; i < this->m_EmpNum; i++) {
int min = i;
for (int j = i + 1; j < this->m_EmpNum;j++) {
if (this->m_EmpArray[min]->w_id < this->m_EmpArray[j]->w_id) {
min = j;
}
}
if ( i != min) {
Woker* temp = m_EmpArray[i];
m_EmpArray[i] = m_EmpArray[min];
m_EmpArray[min] = temp;
}
}
cout << "快速排序降序完成!" << endl;
break;
}
default:
cout << "排序方式输入有误!" << endl;
}
this->save();
cout << "排序成功,排序后结果为:" << endl;
this->show_Emp();
}
}
//清空
void workerManager::clean_Emp() {
cout << "确定清空?" << endl;
cout << "1、确定" << endl;
cout << "2、退出" << endl;
int select = 0;
cin >> select;
switch (select)
{
case 1:
{
//打开模式 ios::trunc 如果存在删除文件并重新创建
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;
this->m_EmpNum = 0;
this->m_FileIsEmpty = true;
}
cout << "清空完成!" << endl;
system("pause");
system("cls");
break;
}
case 2:
cout << "已退出,文件未清空!" << endl;
system("pause");
system("cls");
break;
default:
cout << "选择有误!" << endl;
system("pause");
system("cls");
break;
}
}
//添加
void workerManager::add_Emp() {
cout << "请输入新添加职工的数量(整数):" << endl;
int add_num = 0;
cin >> add_num;
if (add_num > 0) {
//1、计算新空间大小
int newSize = this->m_EmpNum + add_num;
//2、开辟新的空间
Woker** newSpace = new Woker* [newSize+4];
//3、将原空间的内容放入新空间
if (this->m_EmpArray != NULL) {
for (int i =0 ; i < this->m_EmpNum; i++) {
newSpace[i] = this->m_EmpArray[i];
}
}
//4、输入新的数据
for (int i = 0; i < add_num; i++) {
int id;
string name;
int dselete;
cout << "请输入第" << i + 1 << "个新职员的编号:" << endl;
cin >> id;
int j = 0;
while (j < this->m_EmpNum) {
if (m_EmpArray != NULL) {
if (id == this->m_EmpArray[j]->w_id) {
cout << "输入错误,请重新输入:" << endl;
cin >> id;
j = 0;
}
else {
j++;
}
}
}
cout << "请输入第" << i + 1 << "个新职员的姓名:" << endl;
cin >> name;
cout << "请输入第" << i + 1 << "个新职员的岗位(数字):" << endl;
cout << "1、员工" << endl;
cout << "2、经理" << endl;
cout << "3、总裁" << endl;
cin >> dselete;
if (dselete == 1 || dselete == 2 || dselete == 3) {
Woker* woker = NULL;
switch (dselete) {
case 1:
woker = new Employee(id, name, 1);
break;
case 2:
woker = new Manager(id, name, 2);
break;
case 3:
woker = new Boss(id, name, 3);
break;
}
newSpace[this->m_EmpNum + i] = woker;
}
else {
cout << "选择错误!录入失败,请重新输入:" << endl;
cin >> dselete;
}
}
//5、释放原来的空间
delete[] this->m_EmpArray;
//6、更改指针指向
this->m_EmpArray = newSpace;
//7、更新员工个数
this->m_EmpNum = newSize;
//置文件不为空
this->m_FileIsEmpty = false;
//8、提示信息
cout << "成功添加"<save();
}
else {
cout << "输入有误!" << endl;
}
system("pause");
system("cls");
}
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