c++阶段案例-职工管理系统
头文件部分文件名 boss.h
#pragma once
#include<iostream>
using namespace std;
#include"worker.h"
//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();
};
文件名 employee.h
//普通员工文件
#pragma once
#include <iostream>
using namespace std;
#include"worker.h"
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() ;
};
文件名 manager.h
#pragma once
#include<iostream>
using namespace std;
#include"worker.h"
//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() ;
};
文件名 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
string m_Name;
//部门编号
int m_DeptId;
};
文件名 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;//标准命名空间
#include"worker.h"
#include "employee.h"
#include"boss.h"
#include"manager.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();
//保存文件
void save();
//判断文件是否为空标志
bool m_FileIsEmpty;
//统计人数
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();
//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 Cliean_File();
//判断职工是否存在,不存在返回-1
int IsExist(int id);
//判断职工是否存在,不存在返回空
int IsnameExist(string name);
//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();
//析构函数
~WorkerManager();
};
源文件部分
文件名 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职工的姓名:" << this->m_Name
<< "\t岗位:" << getDeptName()
<< "职责:管理公司所有事务!" << endl;
}
//获取岗位名称
string Boss::getDeptName()
{
return string("老板");
}
文件名 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职工的姓名:" << this->m_Name
<< "\t岗位:" << getDeptName()
<<"职责:完成经理分配的任务!"
<<endl;
}
//获取岗位名称
string Employee::getDeptName()
{
return string("普通员工");
}
文件名 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职工的姓名:" << this->m_Name
<< "\t岗位:" << getDeptName()
<< "职责:完成老板分配的任务,并下发任务给普通员工!"
<< endl;
}
//获取岗位名称
string Manager::getDeptName()
{
return string("经理");
}
文件名 workerManager.cpp
#include"workerManager.h"
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;
}
//2.文件存在,但是没内容
char ch;
ifs >> ch;
if (ifs.eof())//eof文件尾部
{
//文件为空
// cout<<"文件为空"<<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;
}
//3.文件存在,并有数据
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 * ;
//将文件中的数据,存在数组中
this->init_Emp();
//for (int i=0;i<this->get_EmpNum();i++)
//{
// cout << "职工编号:" << this->m_EmpArray->m_Id
// << "职工姓名:" << this->m_EmpArray->m_Name
// << "职工编号:" << this->m_EmpArray->m_DeptId << endl;
//}
}
//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.添加职工信息***********" << 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.管理排序方式***********" << endl;
cout << "***********7.清空所有文档***********" << endl;
cout << "************************************" << endl;
}
//退出系统
void WorkerManager::ExitSystem()
{
cout << "欢迎下次使用本程序!" << endl;
system("pause");
exit(0);
}
//添加职工
void WorkerManager::Add_Emp()
{
cout << "请输入要添加的职工人数!" << endl;
int addNum = 0;//保存用户要添加的人数数量
cin >> addNum;
if (addNum > 0)
{
//添加
//计算添加空间大小
int newSize = this->m_EmpNum + addNum;//新空间人数=原空间人数+新添加的人数;
//开辟新空间
Worker ** newSpace=new Worker* ;
//将原来空间下数据,拷贝新空间下
if (this->m_EmpArray != NULL)
{
for (int i=0;i<this->m_EmpNum;i++)
{
newSpace = this->m_EmpArray;
}
}
//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 << "请选择该职工的岗位:" << 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:
cout << "输入有误!默认普通职工!" << endl;
worker = new Employee(id, name, 1);
break;
}
//将创建职工指针,保存到数组中
newSpace = worker;
}
//释放原有的空间
delete[] this->m_EmpArray;
//更改新空间的指向
this->m_EmpArray = newSpace;
//更新新的职工人数
this->m_EmpNum=newSize;
//提示添加成功
cout << "成功添加"<<addNum <<"名职工!"<< endl;
//更新文件不为空
this->m_FileIsEmpty = false;
//保存数据到txt中
this->save();
}
else
{
cout << "输入有误!" << endl;
}
//按任意键清屏并返回首页
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
//将每个人的数据写入文件中
for (int i=0; i < this->m_EmpNum; i++)
{
ofs << this->m_EmpArray->m_Id << "\t"
<< this->m_EmpArray->m_Name << "\t"
<< this->m_EmpArray->m_DeptId << endl;
}
//关闭文件
ofs.close();
}
//统计人数
int WorkerManager::get_EmpNum()
{
ifstream ifs;
ifs.open(FILENAME, ios::in);//打开文件,读取
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)//普通员工
{
worker = new Employee(id,name ,dId);
}
if (dId == 2)//普通员工
{
worker = new Manager(id, name, dId);
}
else
{
worker = new Boss(id, name, dId);
}
this->m_EmpArray = worker;
index++;
}
ifs.close();
}
//显示职工
void WorkerManager::Show_Emp()
{
//判断文件是否存在
if(this->m_FileIsEmpty)
{
cout << "文件不存在或者为空" << endl;
}
else
{
for (int i=0;i<m_EmpNum;i++)
{
//利用多态调用程序接口
this->m_EmpArray->showInfo();
}
}
system("pause");
system("cls");
}
//删除职工
void WorkerManager::Del_Emp()
{
if (this->m_FileIsEmpty)
{
cout << "文件不存在" << endl;
}
else
{
//按照职工编号删除
cout << "请选择要删除的职工方式" << endl;
cout << "1.按编号删除" << endl;
cout << "2.按名称删除" << endl;
cout << endl << endl;
cout << "请输入选项" << endl;
int selest=0;
cin >>selest;
if (selest == 1)
{
int id = 0;
cout<<"请输入您要删除的职工编号!"<<endl;
cin >> id;
int index=this->IsExist(id);
if (index != -1)//职工存在,并且删除
{
for (int i = index; i < this->m_EmpNum - 1; i++)
{
//数据迁移
this->m_EmpArray = this->m_EmpArray;
}
this->m_EmpNum--;//更新人数
this->save();
cout << "删除成功!" << endl;
}
else
{
cout << "职工不存在!" << endl;
}
}
else if(selest==2)
{
string name="";
cout<<"请输入您要删除的职工姓名!"<<endl;
cin >> name;
int index = this->IsnameExist(name);
if (index != -1)
{
for (int i=index;i<this->m_EmpNum-1;i++)
{
this->m_EmpArray = this->m_EmpArray;
}
this->m_EmpNum--;
this->save();
cout<<"删除成功"<<endl;
}
else
{
cout<<"职工不存在!"<<endl;
}
}
else
{
cout << "没有此选项!" << endl;
system("pause");
system("cls");
return;
}
}
//按任意键清屏
system("pause");
system("cls");
}
//修改职工
void WorkerManager::Mod_Emp()
{
if (this->m_FileIsEmpty)
{
cout<<"文件不存在!或者为空!"<<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;
int newid=0;
string newName = "";
int dSelect = 0;
cout<<"查找到"<<id<<"号职工,请输入新职工编号:"<<endl;
cout<<"请输入编号"<<endl;
cin >> newid;
cout << "请输入姓名" << endl;
cin >> newName;
cout << "请选择岗位" << 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 = worker;
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()
{
bool flag = false;//判断是否查找成功标志
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)
{
int id;
cout << "请输入要查找的职工编号" << endl;
cin >> id;
int ret = IsExist(id);
if (ret != -1)
{
cout<<"查找成功!该职工信息:"<<endl;
this->m_EmpArray->showInfo();
}
else
{
cout<<"查无此人!"<<endl;
}
}
else if (select == 2)
{
string name;
cout<<"请输入要查找的姓名!"<<endl;
cin >> name;
for (int i=0;i<m_EmpNum;i++)
{
if (this->m_EmpArray->m_Name == name)
{
cout << "查找成功,职工编号为: "
<< this->m_EmpArray->m_Id
<< "号职工信息如下: " << endl;
flag = true;
this->m_EmpArray->showInfo();
}
}
if (flag == false)
{
cout<<"查无此人"<<endl;
}
}
else
{
cout<<"选择的项目不存在!"<<endl;
}
}
//按任意键返回
system("pause");
system("cls");
}
//排序职工
void WorkerManager::Sort_Emp()
{
if (this->m_FileIsEmpty)
{
cout<<"文件不存在"<<endl;
system("pause");
system("cls");
}
else
{
cout << "请选择要按什么方式排序:" << endl;
cout << "1.按照职工编号的升序排序"<<endl;
cout << "2.按照职工编号的升序排序" << endl;
int select = 0;
cin >> select;
for (int i = 0; i < m_EmpNum; i++)
{
int minOrMax = i;//认定最大值或者最小值
for(int j = i + 1;j< this->m_EmpNum; j++)
{
if (select == 1)
{
if (this->m_EmpArray->m_Id > this->m_EmpArray->m_Id)
{
minOrMax = j;
}
}
else
{
if (this->m_EmpArray->m_Id < this->m_EmpArray->m_Id)
{
minOrMax = j;
}
}
}
if (i!= minOrMax)
{
Worker * temp = this->m_EmpArray;
this->m_EmpArray = this->m_EmpArray;
this->m_EmpArray = temp;
}
}
cout<<"排序成功!排序后的结果为:"<<endl;
this->save();//排序后结果保存到文件中
this->Show_Emp();//展示所有职工
}
}
//判断职工是否存在,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->m_Id == id)
{
index=i;
break;
}
}
return index;
}
//判断职工是否存在,不存在返回-1
int WorkerManager::IsnameExist(string name)
{
int index = -1;
for (int i = 0; i < this->m_EmpNum; i++)
{
if (this->m_EmpArray->m_Name == name)
{
index = i;
break;
}
}
return index;
}
//清空文件
void WorkerManager::Cliean_File()
{
cout<<"确定清空吗"<<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)
{
//删除堆区的每个对象
for (int i = 0; i < this->m_EmpNum; i++)
{
delete this->m_EmpArray;
this->m_EmpArray = NULL;
}
//删除堆区数组的指针
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");
}
//析构函数
WorkerManager::~WorkerManager()
{
if (this->m_EmpArray != NULL)
{
delete[] this->m_EmpArray;
this->m_EmpArray = NULL;
}
}
文件名 职工管理系统
#include<iostream>
using namespace std;
#include"workerManager.h"
#include"worker.h"
#include"employee.h"
#include"manager.h"
#include"boss.h"
int main()
{
//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;
WorkerManager wm;
int choice = 0;//用来存储用户的选择
while (true)
{
wm.Show_Menu();
cout << "输入您的选择" << endl;
cin >> choice;//接受用户的选择
switch (choice)
{
case 0://退出
wm.ExitSystem();
break;
case 1://添加职工信息
wm.Add_Emp();
break;
case 2://显示职工信息
wm.Show_Emp();
break;
case 3://删除离职职工.
wm.Del_Emp();
break;
case 4://修改职工信息
wm.Mod_Emp();
break;
case 5://查找职工信息
wm.Find_Emp();
break;
case 6://管理排序方式
wm.Sort_Emp();
break;
case 7://清空所有文档
wm.Cliean_File();
break;
default:
cout << "输入错误,按任意键重新选择!" << endl;
system("pause");
system("cls");
break;
}
}
system("pause");
return 0;
} 看来楼主是c++方向了,然而我们学校教的一塌糊涂。。。。。。
貌似这个是黑马的案例2,在csdn上看到过,源码和笔记地址:https://blog.csdn.net/Augenstern_QXL/article/details/117262608?spm=1001.2014.3001.5501
里面有截图,需要的朋友可以看看。 快乐的鸡蛋黄 发表于 2021-6-6 09:52
看来楼主是c++方向了,然而我们学校教的一塌糊涂。。。。。。
貌似这个是黑马的案例2,在csdn上看到过,源 ...
嗯,这个案例是黑马的。自己打了一遍。{:301_992:} 看到txt,数据是保存在记事本中吗? 加油加油 楼主好人一生平安 tlf 发表于 2021-6-6 08:14
谢谢分享。应该会继续。
会有运行界面吧
有的。我没截图。 shen12wang 发表于 2021-6-6 08:15
看到txt,数据是保存在记事本中吗?
对,是存在记事本上了。 感谢分享{:1_893:} 感谢分享好的学习笔记。 感谢分享,希望能出一款MFC界面的
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