前言

该程序为员工的管理系统，分为三个阶级普通员工、经理、老板。分别实现了对数据的添加、删除、查询、修改等操作。且将员工信息存储到文件中。

一、头文件

boss.h

#include "woker.h"class Boss : public Woker
{
public:Boss(int id, std::string name, int deptId);virtual void show_info();virtual std::string get_dept_name();
};

employee.h

#include "woker.h"class Employee: public Woker
{
public:Employee(int id, std::string name, int deptId);virtual void show_info();virtual std::string get_dept_name();
};

manager.h

#include "woker.h"class Manager : public Woker
{
public:Manager(int id, std::string name, int deptId);virtual void show_info();virtual std::string get_dept_name();
};

woker.h

#pragma once
#include <iostream>
#include <string>class Woker
{
public:/** 查看职工信息 */virtual void show_info() = 0;/** 获取职位名称 */virtual std::string get_dept_name() = 0;int m_id;std::string m_name;int m_deptId; 
};

workerManager.h

#pragma once
#include <iostream>
#include <fstream>
#include "woker.h"const std::string FILENAME = "data.txt";class workerManager
{
public:int m_empNum;Woker **m_empArray;workerManager();/** 显示菜单 */void show_menu();/** 退出程序 */void quit_manager();/** 添加员工 */void addEmployee();/** 删除员工 */void delEmployee(int id);/** 修改员工信息 */void modifyEmployee(int id);/** 查询员工信息 */void searchEmployee(int id);/** 按编号排序 */void sortById(bool order = true);/** 清空文档 */void clearDos();/** 显示信息 */void PPrint();/** 信息存储 */void save_info();/** 读取信息 */void read_info();/** 字符串过滤 */char* str_pass(char * str);/** 判断部门 */Woker *judge_dept(int id, const char *name, int deptId);~workerManager();
};

二、源文件

boss.cpp

#include "boss.h"Boss::Boss(int id, std::string name, int deptId)
{this->m_id = id;this->m_name = name;this->m_deptId = deptId;
}void Boss::show_info()
{std::cout << "员工编号：" << this->m_id<< "\n员工姓名：" << this->m_name<< "\n员工部门编号：" << this->m_deptId << std::endl;
}std::string Boss::get_dept_name()
{return std::string("老板");
}

employee.cpp

#include "employee.h"Employee::Employee(int id, std::string name, int deptId)
{this->m_id = id;this->m_name = name;this->m_deptId = deptId;
}void Employee::show_info()
{std::cout << "员工编号：" << this->m_id<< "\n员工姓名：" << this->m_name<< "\n员工部门编号：" << this->m_deptId << std::endl;
}std::string Employee::get_dept_name()
{return std::string("员工");
}

manager

#include "manager.h"Manager::Manager(int id, std::string name, int deptId)
{this->m_id = id;this->m_name = name;this->m_deptId = deptId;
}void Manager::show_info()
{std::cout << "员工编号：" << this->m_id<< "\n员工姓名：" << this->m_name<< "\n员工部门编号：" << this->m_deptId << std::endl;
}std::string Manager::get_dept_name()
{return std::string("部门经理");
}

workManager.cpp

#define _CRT_SECURE_NO_WARNINGS
#include "workerManager.h"
#include "employee.h"
#include "manager.h"
#include "woker.h"
#include "boss.h"extern const std::string FILENAME;workerManager::workerManager()
{this->m_empArray = NULL;this->m_empNum = 0;this->read_info();
}void workerManager::show_menu(){std::cout << " ********************************************" << std::endl;std::cout << " ********* 欢迎使用职工管理系统! ************" << std::endl ;std::cout << " ************ 0. 退出管理程序  **************" << std::endl;std::cout << " ************ 1. 增加职工信息  **************" <<std::endl ;std::cout << " ************ 2. 显示职工信息  **************" << std::endl;std::cout << " ************ 3. 删除离职职工  **************" << std::endl;std::cout << " ************ 4. 修改职工信息  **************" << std::endl;std::cout << " ************ 5. 查找职工信息  **************" << std::endl;std::cout << " ************ 6. 按照编号排序  **************" << std::endl;std::cout << " ************ 7. 清空所有文档  **************"<< std::endl;std::cout << " ********************************************" << std::endl;
}/** 退出程序 */
void workerManager::quit_manager()
{this->save_info();std::cout << "欢迎下次使用..." << std::endl;system("pause");exit(0);
}/** 添加员工 */
void workerManager::addEmployee()
{int addNum;std::cout << "请输入要添加的个数：";std::cin >> addNum;if (addNum <= 0) return;int newsize = this->m_empNum + addNum;/* 创建空间  */Woker **newWoker = new Woker*[newsize];/* 将原来的数据存入心的空间 */if (this->m_empArray != NULL){for (int i = 0; i < this->m_empNum; ++i)newWoker[i] = this->m_empArray[i];}/* 插入新的数据 */for (int j = 0; j < addNum; ++j){std::cout << "----------------------------" << std::endl;int tmp_id;std::string tmp_name;int tmp_deptId;std::cout << "请输入第" << j + 1 << "个员工编号：";std::cin >> tmp_id;std::cout << "请输入第" << j + 1 << "个员工名称：";std::cin >> tmp_name;std::cout << "请输入第" << j + 1 << "个部门编号：";std::cin >> tmp_deptId;/*Woker *tmp_woker = NULL;switch (tmp_deptId){case 1:tmp_woker = new Employee(tmp_id, tmp_name, tmp_deptId);break;case 2:tmp_woker = new Manager(tmp_id, tmp_name, tmp_deptId);break;case 3:tmp_woker = new Boss(tmp_id, tmp_name, tmp_deptId);break;default:std::cout << "没有该部门..." << std::endl;break;}newWoker[this->m_empNum + j] = tmp_woker;*/newWoker[this->m_empNum + j] = this->judge_dept(tmp_id, tmp_name.c_str(), tmp_deptId);}/* 更新数据 */delete[] this->m_empArray;this->m_empArray = newWoker;this->m_empNum = newsize;std::cout << "成功添加" << addNum << "个员工...." << std::endl;
}/** 删除员工根据员工编号 */
void workerManager::delEmployee(int id)
{int i = 0;for (i = 0; i < this->m_empNum; ++i){if (id == this->m_empArray[i]->m_id)break;}if (i == this->m_empNum){std::cout << "没有该员工信息，请输入正确的员工编号....." << std::endl;return;  }for (int j = i+1; j < this->m_empNum; ++j)this->m_empArray[j-1] = this->m_empArray[j];std::cout << this->m_empArray[i]->m_id << "删除成功..." << std::endl;}/** 修改员工信息 */
void workerManager::modifyEmployee(int id)
{for (int i = 0; i < this->m_empNum; ++i){if (id == this->m_empArray[i]->m_id){// 打印原信息std::cout << "员工编号：" << this->m_empArray[i]->m_id<< "\n员工姓名：" << this->m_empArray[i]->m_name<< "\n员工部门编号：" << this->m_empArray[i]->m_deptId << std::endl;// 修改std::cout << "请输入要修改的上述员工信息：" << std::endl;std::cout << "请输入员工姓名：";std::cin >> this->m_empArray[i]->m_name;std::cout << "请输入员工部门编号：";std::cin >> this->m_empArray[i]->m_deptId;std::cout << this->m_empArray[i]->m_id << "信息修改成功...." << std::endl;return;}}std::cout << "没有查询到该员工，请输入正确的员工编号....." << std::endl;
}/** 查询员工信息 */
void workerManager::searchEmployee(int id)
{for (int i = 0; i < this->m_empNum; ++i){if (id == this->m_empArray[i]->m_id){std::cout << "员工编号：" << this->m_empArray[i]->m_id<< "\n员工姓名：" << this->m_empArray[i]->m_name<< "\n员工部门编号：" << this->m_empArray[i]->m_deptId << std::endl;return;}}std::cout << "没有查询到该员工，请输入正确的员工编号....." << std::endl;
}/** 按编号排序 */
void workerManager::sortById(bool order)
{// 为true是正序if (order == true){for (int i = 0; i < this->m_empNum; ++i){for (int j = i + 1; j < this->m_empNum; ++j){Woker * tmp;if (this->m_empArray[i]->m_id < this->m_empArray[j]->m_id){tmp = this->m_empArray[i];this->m_empArray[i] = this->m_empArray[j];this->m_empArray[j] = tmp;}}}}this->PPrint();}/** 清空文档 */
void workerManager::clearDos()
{std::ofstream fp;fp.open(FILENAME, std::ios::trunc);fp.close();
}/** 显示信息 */
void workerManager::PPrint()
{std::cout << "所有员工信息：" << std::endl;std::cout << this->m_empNum << std::endl;for (int i = 0; i < this->m_empNum; ++i){std::cout << "----------------------------" << std::endl;std::cout << "员工编号：" << this->m_empArray[i]->m_id<< "\n员工姓名：" << this->m_empArray[i]->m_name<< "\n员工部门编号：" << this->m_empArray[i]->get_dept_name() << std::endl;}
}/** 信息存储 */
void workerManager::save_info()
{std::ofstream fp;fp.open(FILENAME, std::ios::out | std::ios::app);if (!fp.is_open()){std::cout << "文件打开失败..." << std::endl;return;}for (int i = 0; i < this->m_empNum; ++i)fp << "----------------------------\n" << "员工编号:" << this->m_empArray[i]->m_id<< "\n员工姓名:" << this->m_empArray[i]->m_name<< "\n员工部门编号:" << this->m_empArray[i]->m_deptId << std::endl;std::cout << "文件信息已存档..." << std::endl;fp.close();
}/** 读取信息 */
void workerManager::read_info()
{std::ifstream fp;fp.open(FILENAME, std::ios::in);int count = 0, i = 0, j = 0;/* 判断文件是否打开成功 */if (!fp.is_open()){	std::cout << "文件不存在，无法加载文档..." << std::endl;return;}char buf[128] = { 0 };char *tmpData[128] = { 0 };std::cout << "加载文档信息..." << std::endl;/* 获取文件中职员个数 */while (fp >> buf){tmpData[i] = new char [128];/* 标记个数 */ if ('-' == buf[0]) {count++;continue;}/* 切割信息 */  char* pos = strstr(buf, ":");strcpy(tmpData[i], pos + 1);i++;}/* 暂存信息 */Woker **tmpWorker = new Woker *[count+1];int tmp_id, tmp_deptId;char *tmp_name;/* 循环每个员工信息 */for (int x = 0; x < i / 3; ++x){Woker *tmp_woker = NULL;for (j = x * 3; j < (x + 1) * 3; ++j){if (j % 3 == 0)tmp_id = atoi(tmpData[j]);else if (j % 3 == 1)tmp_name = tmpData[j];elsetmp_deptId = atoi(tmpData[j]);}tmpWorker[x] = this->judge_dept(tmp_id, tmp_name, tmp_deptId);}this->m_empArray = tmpWorker;this->m_empNum = count;					std::cout << "文档加载成功..." << std::endl;fp.close();delete[] * tmpData;
}/** 判断部门 */
Woker *workerManager::judge_dept(int id, const char *name, int deptId)
{Woker *tmp_woker = NULL;switch (deptId){case 1:tmp_woker = new Employee(id, name, deptId);break;case 2:tmp_woker = new Manager(id, name, deptId);break;case 3:tmp_woker = new Boss(id, name, deptId);break;default:std::cout << "没有该部门..." << std::endl;break;}return tmp_woker;
}/** 字符串过滤 */
char* workerManager::str_pass(char * str)
{char buf[128] = { 0 };for (int i = 0; i < strlen(str) - 1; ++i){if (str[i] == ' ')break;buf[i] = str[i];}return str;
}workerManager::~workerManager()
{this->save_info();if (this->m_empArray != NULL){delete[] this->m_empArray;this->m_empArray = NULL;}
}

main.cpp

#define _CRT_SECURE_NO_WARNINGS
#include "workerManager.h"
#include "boss.h"
#include "employee.h"
#include "manager.h"
#include "woker.h"void test()
{workerManager worker;int choice = 0, id = 0;while (true){worker.show_menu();std::cout << "请输入选项【0-7】：";std::cin >> choice;switch (choice){case 0:worker.quit_manager();break;case 1:		// 增加员工信息worker.addEmployee();break;case 2:		// 显示员工信息worker.PPrint();break;case 3:		// 删除离职员工std::cout << "请输入要删除的员工id：";std::cin >> id;worker.delEmployee(id);break;case 4:		// 修改职工信息std::cout << "请输入要删除的员工id：";std::cin >> id;worker.modifyEmployee(id);break;case 5:		// 查找职工信息std::cout << "请输入要删除的员工id：";std::cin >> id;worker.searchEmployee(id);break;case 6:		// 按照编号排序worker.sortById();break;case 7:		// 清空文档worker.clearDos();break;default:system("cls");std::cout << "没有该选项，请重新输入【0-7】任选一项：" << std::endl;break;}system("pause");system("cls");}
}void main()
{test();system("pause");
}