[C++知识库]C++职工管理系统

职工管理系统.cpp

#include"workerManager.h"
#include"boss.h"
#include"employee.h"
#include"manager.h"
#include"worker.h"


int main()
{
	int id = 0;
	WorkerManager wm;
	int choice = 0;
	do
	{
		wm.Menu();
		cout << "请输入你要进行的操作：";
		cin >> choice;
		switch (choice)
		{
		case 0://退出系统
			cout << "退出系统成功！" << endl;
			return 0;
			break;
		case 1://添加职工
			wm.Add_Emp();
			break;
		case 2://显示职工
			wm.ShowEmp();
			break;
		case 3://删除职工
			cout << "请输入你要删除的员工编号：";
			cin >> id;
			wm.DeleEmp(id);
			break;
		case 4://修改职工
			cout << "请输入你要修改的员工编号：";
			cin >> id;
			wm.ChangeEmp(id);
			break;
		case 5://查找职工
			cout << "请输入你要查找的员工编号：";
			cin >> id;
			wm.FindEmpP(id);
			break;
		case 6://排序职工
			wm.RankEmp();
			break;
		case 7://清空文件 
			wm.CleanFile();
			break;
		}
	} while (1);



	return 0;
}

worker.h

#include<iostream>
#pragma once//防止头文件重复包含
#include<string>
#include<fstream>
using namespace std;

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;//职工所在部门编号
};

workerManager.cpp

#include"workerManager.h"
#include"employee.h"
#include "manager.h"
#include"boss.h"
#include"worker.h"

//构造函数
WorkerManager::WorkerManager()
{
	ifstream ifs;
	ifs.open(FILENAME, ios::in);

	//文件不存在情况
	if (!ifs.is_open())
	{
		cout << "文件不存在" << endl;

		//初始化人数
		this->m_EmpNum = 0;

		//初始化文件为空标志
		this->m_FileIsEmpty = true;

		//初始化数组指针
		this->m_EmpArray = NULL;

		//关闭文件
		ifs.close();
		return;
	}

	//文件存在，但是没有记录
	char ch;
	ifs >> ch;//右移一个字符去读
	if (ifs.eof())
	{
		cout << "文件内容为空" << endl;

		//初始化人数
		this->m_EmpNum = 0;

		//初始化文件为空标志
		this->m_FileIsEmpty = true;

		//初始化数组指针
		this->m_EmpArray = NULL;

		//关闭文件
		ifs.close();
		return;

	}

	//文件存在 且记录数据
	int num = this->GetNum();

	cout << "当前员工个数为：" << num << endl;

	this->m_EmpNum = num;

	//根据职工数创建数组
	this->m_EmpArray = new Worker*[this->m_EmpNum];

	//初始化职工
	InitEmp();

	/*for (int i = 0; i < this->m_EmpNum; i++)
	{
		cout << "职工号为：" << this->m_EmpArray[i]->m_Id
			<< " 职工名称：" << this->m_EmpArray[i]->m_Name
			<< " 部门编号：" << this->m_EmpArray[i]->m_DeptId << endl;
	}*/


}

//析构函数
WorkerManager::~WorkerManager()
{
	if (this->m_EmpArray != NULL)
	{
		delete[]this->m_EmpArray;
		this->m_EmpArray = NULL;
	}
}

//打印菜单
void WorkerManager::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;

}

//增加职工
void WorkerManager::Add_Emp()
{
	cout << "请输入添加员工的个数：";
	int addnum = 0;
	cin >> addnum;

	if (addnum > 0)
	{
		//计算新空间的大小
		int newsize = this->m_EmpNum + addnum;

		//开辟新的空间
		Worker** newspace = new Worker*[newsize];

		//将原空间下内容放在新空间下
		if (this->m_EmpArray != NULL )
		{
			for (int i = 0; i < this->m_EmpNum; i++)
			{
				newspace[i] = this->m_EmpArray[i];
			}
		}

		//输入新的数据
		for (int i = 0; i < addnum; i++)
		{
			int id;
			string name;
			int Dselect;

			cout << "请输入第" << i + 1 << "个新员工的编号：" ;
			cin >> id;

			cout << "请输入第" << i + 1 << "个新员工的名字：" ;
			cin >> name;

			cout << "请输入第" << i + 1 << "个新员工的岗位：" << endl;
			cout << "1、职工" << endl;
			cout << "2、经理" << endl;
			cout << "3、老板" << endl;
			cin >> Dselect;


			Worker* worker = NULL;
			switch (Dselect)
			{
			case 1://普通员工
				worker = new Employee(id, name, 1);
				break;
			case 2://经理
				worker = new Manager(id, name, 2);
				break;
			case 3://老板
				worker = new Boss(id, name, 3);
				break;
			default:
				system("cls");
				break;
			}

			newspace[this->m_EmpNum + i] = worker;
		}

		//释放原有的空间
		delete[] this->m_EmpArray;

		//更新新空间的指向
		this->m_EmpArray = newspace;

		//更新新的个数
		this->m_EmpNum = newsize;

		//更新职工不为空标志
		this->m_FileIsEmpty = false;

		cout << "成功添加" << addnum << "名新员工！" << endl;

		this->save();//保存文件
	}

	else
	{
		cout << "输入有误" << endl;
	}
}

//保存职工信息
void WorkerManager::save()
{
	ofstream ofs;
	ofs.open(FILENAME, ios::out);

	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;
	}

	ofs.close();
}

//统计人数
int WorkerManager::GetNum()
{
	ifstream ifs;
	ifs.open(FILENAME, ios::in);

	int id;
	string name;
	int did;

	int num = 0;

	while (ifs >> id && ifs >> name&& ifs >> did)
	{
		//记录人数
		num++;
	}
	ifs.close();

	return num;
}

//初始化员工
void WorkerManager::InitEmp()
{
	ifstream ifs;
	ifs.open(FILENAME, ios::in);

	int id;
	string name;
	int did;

	int index = 0;
	while (ifs >> id && ifs >> name&& ifs >> did)//一行一行的读取员工的信息
	{
		Worker* worker = NULL;
		//根据不同的部门创建不同的对象
		if (did == 1)
		{
			worker = new Employee(id, name, did);//普通员工
		}
		else if (did == 2)
		{
			worker = new Manager(id, name, did);//经理
		}
		else if (did == 3)
		{
			worker = new Boss(id, name, did);//老板
		}

		//把该信息存放在数组中
		this->m_EmpArray[index] = worker;
		index++;
	}
}

//显示职工
void WorkerManager::ShowEmp()
{
	if (this->m_FileIsEmpty )
	{
		cout << "职工信息为空" << endl;
	}
	else
	{
		for (int i = 0; i < this->m_EmpNum; i++)
		{
			//利用多态调用打印
			this->m_EmpArray[i]->ShowInfo();
		}
	}

}

//根据职工编号查找职工
int WorkerManager::FindEmp(int id)
{
	for (int i = 0; i < this->m_EmpNum; i++)
	{
		if (this->m_EmpArray[i]->m_Id == id)
		{
			return i;
		}
	}
	return -1;
}

//根据职工编号查找职工并打印
void WorkerManager::FindEmpP(int id)
{
	int ret =this-> FindEmp(id);
	if (-1 == ret)
	{
		cout << "你要查找的编号不存在！" << endl;
	}

	else
	{
		this->m_EmpArray[ret]->ShowInfo();
	}
}

//删除职工
void WorkerManager::DeleEmp(int id)
{
	int ret =this-> FindEmp(id);
	if (ret == -1)
	{
		cout << "你要删除的员工编号不存在！" << endl;

		return;
	}
	for (int i = ret; i < this->m_EmpNum-1; i++)
	{
		this->m_EmpArray[i] = this->m_EmpArray[i + 1];
	}

	this->m_EmpNum--;

	this->save();//同步到文件中

	cout << "删除成功！" << endl;
}

//修改员工
void WorkerManager::ChangeEmp(int id)
{
	int input = 0;
	string name;
	int m_id;
	int did;
	int ret = this->FindEmp(id);
	if (-1 == ret)
	{
		cout << "你输入的员工编号不存在！" << endl;
	}
	else
	{
		cout << "*******************" << endl;
		cout << "***1、修改编号*****" << endl;
		cout << "***2、修改姓名*****" << endl;
		cout << "***3、修改部门*****" << endl;
		cout << "*******************" << endl;
		cout << "请选择你要进行的操作：";
		cin >> input;
		FindEmpP(input);
		switch (input)
		{
		case 1:
			cout << "请输入修改后的编号：";
			cin >> m_id;
			this->m_EmpArray[ret]->m_Id = m_id;
			break;
		case 2:
			cout << "请输入修改后的姓名：";
			cin >> name;
			this->m_EmpArray[ret]->m_Name = name;
			break;
		case 3:
			cout << "请输入修改后的部门编号：";
			cin >> did;
			this->m_EmpArray[ret]->m_DeptId = did;
			break;
		default:
			cout << "你的输入有误！" << endl;
			break;
		}
		cout << "修改成功" << endl;
	}
}

//排序职工
void WorkerManager::RankEmp()
{
	for (int i = 0; i < this->m_EmpNum - 1; i++)
	{
		for (int j = 0; j < this->m_EmpNum - 1 - i; j++)
		{
			if (this->m_EmpArray[j]->m_Id > this->m_EmpArray[j + 1]->m_Id)
			{
				int m_id = 0;
				m_id = this->m_EmpArray[j]->m_Id;
				this->m_EmpArray[j]->m_Id = this->m_EmpArray[j+1]->m_Id;
				this->m_EmpArray[j + 1]->m_Id = m_id;
			}
		}

	}
	cout << "排序完成" << endl;
}

void WorkerManager::CleanFile()
{
	cout << "是否确认清空？" << endl;
	cout << "1、确认" << endl;
	cout << "2、返回" << endl;

	int input = 0;
	cin >> input;

	if (input == 1)
	{
		//打开模式 ios::trync 如果存在则删除文件并重建
		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];
				}
			}

			this->m_EmpNum = 0;
			delete[] this->m_EmpArray;
			this->m_EmpArray = NULL;
			this->m_FileIsEmpty = true;
		}

		cout << "清空完成" << endl;
	}
	else
	{
		return;
	}
}

workerManager.h

#pragma once//防止头文件重复包含
#include<iostream>
#include<string>
#include<fstream>
#define FILENAME "empFile.txt"
#include"worker.h"
using namespace std;//使用标准的命名空间

class WorkerManager
{
public:
	WorkerManager();

	int m_EmpNum;//记录文件中的人数个数

	Worker** m_EmpArray;//员工数组的指针

	void Menu();//显示菜单

	void Add_Emp();//添加员工

	void save();//保存文件

	bool m_FileIsEmpty;//标志文件是否为空

	int GetNum();//统计人数

	void InitEmp();//初始化员工

	void ShowEmp();//显示职工

	int FindEmp(int id);//查找职工

	void FindEmpP(int id);//查找职工并打印

	void DeleEmp(int id);//删除职工

	void ChangeEmp(int id);//修改员工

	void RankEmp();//排序职工

	void CleanFile();//清空文件

	~WorkerManager();
};

employee.cpp

#include "employee.h"

Employee::Employee(int id, string name, int did)//构造函数传入员工信息
{
	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;
	cout << " 职工姓名：" << this->m_Name;
	cout << " 所在岗位：" << this->GetDeptName();
	cout << " 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");
}

employee.h

#include<iostream>
#include<string>
#include<fstream>
#include "worker.h"
using namespace std;

//员工类
class Employee:public Worker
{
public:
	Employee(int id, string name, int did);//构造函数传入员工信息

	//显示个人信息
	virtual void ShowInfo();

	//获取岗位名称
	virtual string GetDeptName();
};

manager.cpp

#include "manager.h"

Manager::Manager(int id, string name, int did)//构造函数传入员工信息
{
	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;
	cout << " 职工姓名：" << this->m_Name;
	cout << " 所在岗位：" << this->GetDeptName();
	cout << " 岗位职责：完成老板交给的任务！" << endl;
}

//获取岗位名称
string Manager::GetDeptName()
{
	return string("经理");
}

manager.h

#include<iostream>
#include<string>
#include<fstream>
#include "worker.h"
using namespace std;

//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();
};

boss.h

#include<iostream>
#include<string>
#include<fstream>
#include "worker.h"
using namespace std;

//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();
};

Boss.cpp

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#include<iostream>
#include<string>
#include<fstream>
#include "worker.h"
using namespace std;

//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();
};

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