#include<iostream>
#include<string>
using namespace std;
//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
string m_Name;
//部门编号
int m_DeptId;
};
//老板类
class Boss :public Worker
{
public:
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();
};
//普通职工类
class Employee :public Worker
{
public:
//构造函数
Employee(int id, string name, int dId);
//显示个人信息
void ShowInfo();
//获取岗位名称
string getDeptName();
};
//经理类
class Manager :public Worker
{
public:
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();
};
//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:管理公司的所有事务。" << endl;
}
//获取岗位名称
string Boss::getDeptName()
{
return string("老板");
}
//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");
}
//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,并且下发任务给员工。" << endl;
}
//获取岗位名称
string Manager::getDeptName()
{
return string("经理");
}
//管理类:
//1、与用户的沟通菜单页面
//2、对职工进行增删改查
//3、对文件的读写交互
#include<fstream>
#define FILENAME "File.txt"
class WorkerManager
{
public:
//构造函数
WorkerManager();
//展示菜单
void ShowMenu();
//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();
//判断文件是否为空的标志
bool m_FileIsEmpty;
//统计文件中人数
int get_EmpNum();
//初始化员工
void init_Emp();
//显示职工
void Show_Emp();
//删除职工
void Del_Emp();
//判断职工是否存在,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();
};
//WorkerManager的构造函数
WorkerManager::WorkerManager()
{
//1、文件不存在
ifstream ifs;
ifs.open(FILENAME, ios::in);//读文件
if (!ifs.is_open())
{
//cout << "文件不存在。" << 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;
}
//2、文件存在,但是数据为空
char ch;
ifs >> ch;
if (ifs.eof())
{
//代表文件为空
//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();
}
//展示菜单
void WorkerManager::ShowMenu()
{
cout << "by:马杰如 班级:计算机科学与技术2305班 学号:2311010518" << endl;;
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;
}
//退出系统
void WorkerManager::ExitSystem()
{
cout << "欢迎下次再使用!" << endl;
system("pause");
exit(0); //退出程序
}
//添加职工
void WorkerManager::Add_Emp()
{
cout << "请输入添加的职工数量:" << endl;
int addNum = 0;//保存用户的数量
cin >> addNum;
if (addNum > 0)
{
//添加
//计算添加新的空间大小
int newSize = this->m_EmpNum + addNum;//新空间的大小
//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
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
bool abc = true;
do
{
cout << "请输入第" << i + 1 << "个新职工编号:" << endl;
cin >> id;
abc = true;
for (int j = 0; j < this->m_EmpNum + i; j++)
{
if (id == newSpace[j]->m_Id)
{
cout << "编号重复!请重新输入" << endl;
abc = false;
break;
}
}
} while (!abc);
/*while (this->IsExist(id) != -1)
{
cout << "该编号已经存在!请重新输入编号。" << endl;
cin >> id;
}*/
cout << "请输入第" << i + 1 << "个新职工姓名:" << endl;
cin >> name;
cout << "请选择该职工的工位:" << endl
<< "1、普通职工" << endl
<< "2、经理" << endl
<< "3、老板" << endl;
cin >> dSelect;
Worker* worker = NULL;
while (dSelect != 1 && dSelect != 2 && dSelect != 3)
{
cout << endl;
cout << "输入的选项错误!请重新输入:" << endl;
cout << "1、普通职工" << endl
<< "2、经理" << endl
<< "3、老板" << endl;
cin >> dSelect;
}
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;
this->save();
}
else
{
cout << "输入有误!" << endl;
}
//按任意键清屏回到上级目录
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.write((const char*)this->m_EmpArray[i]->m_Id, sizeof(this->m_EmpArray[i]->m_Id)) << " ";
ofs.write(this->m_EmpArray[i]->m_Name.c_str(), sizeof(this->m_EmpArray[i]->m_Name)) << " ";
ofs.write((const char*)this->m_EmpArray[i]->m_DeptId, sizeof(this->m_EmpArray[i]->m_DeptId)) << " ";*/
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);//打开文件用读的方式
int id;
string name;
int dId;
int num = 0;
while (ifs >> id && ifs >> name && ifs >> dId)
{
//统计人数变量
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)//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();
}
void WorkerManager::Show_Emp()
{
//判断文件是否为空
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++)
{
//利用多态调用程序接口
this->m_EmpArray[i]->ShowInfo();
}
}
//按任意键后清屏
system("pause");
system("cls");
}
//删除职工(数组中的删除就是将数据前移)
void WorkerManager::Del_Emp()
{
if (this->m_FileIsEmpty)
{
cout << "文件不存在或者记录为空!" << 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,并且删除掉index位置的职工
{
for (int i = index; i < this->m_EmpNum - 1; i++)
{
//数据前移
this->m_EmpArray[i] = this->m_EmpArray[i + 1];
}
this->m_EmpNum--;
this->save();
}
else
{
cout << "删除失败!没有找到该职工。" << endl;
}
system("pause");
system("cls");
}
}
//判断职工是否存在,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)
{
//找到职工
index = i;
break;
}
}
return index;
}
//修改职工
void WorkerManager::Mod_Emp()
{
if (this->m_FileIsEmpty)
{
cout << "文件不存在或者记录为空!" << 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
int newId = 0;
string newName = "";
int dSelect = 0;
cout << "查到:" << id << "号职工。\t";
cout << "职工姓名:" << m_EmpArray[ret]->m_Name
<< "\t岗位:" << m_EmpArray[ret]->m_DeptId;
delete this->m_EmpArray[ret];
cin >> newId;
cout << "请输入新姓名:" << endl;
cin >> newName;
cout << "请输入岗位:" << endl
<< "1、普通职工。" << endl
<< "2、经理。" << endl
<< "3、老板。" << endl;
cin >> dSelect;
Worker* worker = NULL;
while (dSelect != 1 && dSelect != 2 && dSelect != 3)
{
cout << endl;
cout << "输入的选项错误!请重新输入:" << endl;
cout << "1、普通职工" << endl
<< "2、经理" << endl
<< "3、老板" << endl;
cin >> dSelect;
}
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,没有找到该职工!" << endl;
}
}
system("pause");
system("cls");
}
//查找职工
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;
while (select != 1 && select != 2)
{
cout << endl;
cout << "输入的选项有误!请重新输入。" << endl;
cout << "1、按职工编号查找:" << endl;
cout << "2、按职工姓名查找" << endl;
cin >> select;
}
if (select == 1)
{
//按照编号查
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();
cout << endl;
}
else
{
cout << "查找失败,没有找到该职工!" << endl;
}
}
else if (select == 2)
{
//按姓名查
cout << "请输入查找的姓名:" << endl;
string name;
cin >> name;
//加入判断是否查到的标志
bool flag = false;//默认没有找到该职工
for (int i = 0; i < m_EmpNum; i++)
{
if (this->m_EmpArray[i]->m_Name == name)
{
cout << "查找成功!" << endl << "职工编号为"
<< this->m_EmpArray[i]->m_Id
<< "号。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!没有找到该职工。" << 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、按职工号进行升序" << 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;//声明最小值或者最大值下标
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;
}
}
else//降序
{
if (this->m_EmpArray[minOrMax]->m_Id < this->m_EmpArray[j]->m_Id)
{
minOrMax = j;
}
}
}
//判断一开始认定的最小值是否是计算的最小值或者最大值,否则交换数据
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!排序后的结果为:" << endl;
this->save();//排序后的结果保存到文件中
this->Show_Emp();//展示所有职工
}
void WorkerManager::Clean_File()
{
cout << "确定清空?" << endl;
cout << "1、确定。" << endl;
cout << "2、返回" << endl;
int select = 0;
cin >> select;
while (select != 1 && select != 2)
{
cout << "输入选项有误!请重新输入。" << endl;
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)
{
//删除堆区的每个职工对象
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");
}
system("cls");
}
//WorkerManager的析构函数
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;
}
}
int main()
{
//实例化管理者对象
WorkerManager wm;
//用户输入一个数字代表需要执行的操作
int choice = 0;
while (true)
{
//调用展示菜单函数
wm.ShowMenu();
cout << "请输入您的选择:" << endl;
cin >> choice; //接受用户的选项
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: //清空文档
wm.Clean_File();
break;
default:
system("cls"); //清屏操作
break;
}
}
system("pause");
return 0;
}
评论区