需要概述：
既然设计这个零碎，就要思考对应需要，职工管理系统，顾名思义，是为了治理职工而设计，零碎中最根本的“增删改查”天然少不了。
首先设计头文件
首先，咱们定义多个头文件(设立头文件的目标次要是：提供全局变量、全局函数的申明或专用数据类型的定义，从而实现拆散编译和代码复用。 同时，也有利于强化安全性。）
别离如下(以下每个头文件与每种身份的人对应）：
boss.h
#pragma once#include<iostream>using namespace std;class boss :public worker{public: boss(int id, string name, int post); virtual void showinfo(); virtual string getpost();};employee.h
#pragma onceclass employee :public worker{public: employee(int id, string name, int post); virtual void showinfo(); virtual string getpost();};manager.h
#pragma onceclass Manager :public Worker{public: Manager(int id, string name, int post); virtual void ShowInfo(); virtual string getPost();};worker manager.h
#pragma once#include<iostream>using namespace std;#include"boss.h"#include"manager.h"#include"worker.h"#include"employee.h"#include<fstream>#define TXT "empfine.txt"class worker_manager{public: worker_manager(); void showmenu(); int m_EmpNum; worker** m_EmpArray; void Add_Emp(); void save(); bool_m_File; int get_EmpNum(); void In_emp(); void Show_emp(); int Ison_Emp(int id); void Del_Emp(); void Mod_Emp(); void Find_Emp(); void Sort_Emp(); void Clean_File(); ~worker_manager();};worker.h
#pragma onceclass worker{public: virtual void showinfo() = 0; virtual string getpost() = 0; int m_id; string m_name; int m_post;};源文件如下：
boss.cpp
#include "boss.h"Boss::Boss(int id, string name, int post){ this->m_Id = id; this->m_Name = name; this->m_Post = post;}void Boss::ShowInFo(){ cout << "职工编号：" << this->m_Id << "\t职工姓名：" << this->m_Name << "\t职工部门：" << this->getpost() << "\t岗位职责：治理公司所有事务" << endl;}string Boss::getPost(){ return string("老板");}employee.cpp
include "employee.h"employee::employee(int id, string name, int post){ this->m_Id = id; this->m_Name = name; this->m_Post = post;}void employee::showinfo( { cout << "职工编号：" << this->m_Id << "\t职工姓名：" << this->m_Name << "\t职工部门：" << this->getPost() << "\t岗位职责：实现经理安排的工作" << endl; } string employee::getpost() { return string("员工"); }manager.cpp
#include "manager.h"Manager::Manager(int id, string name, int post){ this->m_Id = id; this->m_Name = name; this->m_Post = post;}void Manager::ShowInfo(){ cout << "职工编号：" << this->m_Id << "\t职工姓名：" << this->m_Name << "\t职工部门：" << this->getPost() << "\t岗位职责：实现老板安排的工作，并下发工作给员工" << endl;}string Manager::getPost(){ return string("经理");}workmanager.h
#include "worker manager.h"worker_manager::Worker_Manager(){ ifstream ifs; ifs.open(TXT, Ios::in); if (!ifs.is_open()) { this->m_EmpNum = 0; this->m_EmpArray = NULL; this->m_File = true; ifs.close(); return; } char ch; ifs >> ch; if (ifs.eof()) { this->m_EmpNum = 0; this->m_EmpNum = NULL; this->m_File = true; ifs.close(); return; } int num = this->get_EmpNum(); this->m_EmpNum = num; this->m_EmpArray = new ew Worker * [this->m_EmpNum]; this->In_Emp();}void Worker_Manager::ShowMenu(){ cout << "****************************************" << endl; cout << "******* 欢送来到职工管理系统！******" << endl; cout << "********* 0.退出管理程序 **********" << endl; cout << "********* 1.减少职工信息 **********" << endl; cout << "********* 2.显示职工信息 **********" << endl; cout << "********* 3.删除职工信息 **********" << endl; cout << "********* 4.批改职工信息 **********" << endl; cout << "********* 5.查找职工信息 **********" << endl; cout << "********* 6.职工编号排序 **********" << endl; cout << "********* 7.清空所有文档 **********" << endl;}void Worker_Manager::Add_Emp(){ cout << "请输出要增加职工数量：" << endl; //保留用户的输出数量 int addNum = 0; cin >> addNum; if (addNum > 0) { //计算增加新空间的大小 int newSize = this->m_EmpNum + addNum;//新空间人数=原来的人数+新减少的人数 //开拓新空间 Worker** newSpace = new Worker * [newSize]; //将原来的数据拷贝到新空间去 if (this->m_EmpArray != NULL) { for (int i = 0; i < this->m_EmpNum; i++) { newSpace[i] = this->m_EmpArray[i]; } } //增加新数据 for (int i = 0; i < addNum; i++) { int id; string name; int post; cout << "请输出第 " << i + 1 << "个新职工的编号： " << endl; cin >> id; cout << "请输出第 " << i + 1 << "个新职工的姓名： " << endl; cin >> name; cout << "请抉择职工岗位： " << endl; cout << "1、普通员工" << endl; cout << "2、经理" << endl; cout << "3、老板" << endl; cin >> post; Worker* worker = NULL; switch (post) { case 1: worker = new Employee(id, name, post); break; case 2: worker = new Manager(id, name, post); break; case 3: worker = new Boss(id, name, post); break; default: cout << "谬误输出" << endl; break; } //将创立的职工指针，保留到数组中 newSpace[this->m_EmpNum + i] = worker; } //开释原指针 delete[] this->m_EmpArray; //更改新空间的指向 this->m_EmpArray = newSpace; //更新职工人数 this->m_EmpNum = newSize; cout << "胜利增加" << addNum << "名新职工" << endl; this->m_File = false; //保留数据到文件中 this->save(); } else { cout << "输出有误" << endl; } system("pause"); system("cls");}void Worker_Manager::save(){ ofstream ofs; ofs.open(TXT, 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_Post << " " << endl; } ofs.close();}int Worker_Manager::get_EmpNum(){ ifstream ifs; ifs.open(TXT, ios::in); int id; string name; int post; int num = 0; while (ifs >> id && ifs >> name && ifs >> post) { num++; } return num;}void Worker_Manager::In_Emp(){ ifstream ifs; ifs.open(TXT, ios::in); int id; string name; int post; int index = 0; while (ifs >> id && ifs >> name && ifs >> post) { Worker* worker = NULL; if (post == 1) { worker = new Employee(id, name, post);//普通员工 } else if (post == 2) { worker = new Manager(id, name, post);//经理 } else { worker = new Boss(id, name, post);//老板 } this->m_EmpArray[index] = worker; index++; } ifs.close();}void Worker_Manager::Show_Emp(){ if (this->m_File) { cout << "该文件不存在或为空" << endl; } else { for (int i = 0; i < this->m_EmpNum; i++) { //利用多态调用 this->m_EmpArray[i]->ShowInfo(); } } //清屏 system("pause"); system("cls");}int Worker_Manager::Ison_Emp(int id){ int index = -1; for (int i = 0; i < this->m_EmpNum; i++) { if (this->m_EmpArray[i]->m_Id == id) { index = i; break; } } return index;}void Worker_Manager::Del_Emp(){ if (this->m_File) { cout << "该文件不存在或为空" << endl; } else { cout << "请输出你要删除员工的编号：" << endl; int id; cin >> id; int ret = this->Ison_Emp(id); //职工存在，且在index地位上 if (ret != -1) { for (int i = ret; i < this->m_EmpNum - 1; i++) { //数据前移 this->m_EmpArray[i] = this->m_EmpArray[i + 1]; } //更新人数 this->m_EmpNum--; cout << "删除胜利" << endl; //同步到文件中 this->save(); } else { cout << "删除失败" << endl; } } system("pause"); system("cls");}void Worker_Manager::Mod_Emp(){ if (this->m_File) { cout << "该文件不存在或为空" << endl; } else { int id = 0; cout << "输出你要批改的员工编号：" << endl; cin >> id; int ret = this->Ison_Emp(id); if (ret != -1) { delete this->m_EmpArray[ret]; int Newid = 0; string name = ""; int post = 0; cout << "查到： " << id << "号员工，请输出新的员工编号： " << endl; cin >> Newid; cout << "查到： " << id << "号员工，请输出新的员工姓名： " << endl; cin >> name; cout << "请输出新岗位" << endl; cout << "1、普通员工" << endl; cout << "2、经理" << endl; cout << "3、老板" << endl; cin >> post; Worker* worker = NULL; switch (post) { case 1: worker = new Employee(Newid, name, post); break; case 2: worker = new Manager(Newid, name, post); break; case 3: worker = new Boss(Newid, name, post); break; default: break; } //将批改的数据放回原来地位 this->m_EmpArray[ret] = worker; cout << "批改胜利" << endl; this->save(); } else { cout << "批改失败" << endl; } } system("pause"); system("cls");}void Worker_Manager::Find_Emp(){ if (this->m_File) { cout << "该文件不存在或为空" << endl; } else { cout << "请抉择查找的形式" << endl; cout << "1、按编号查找" << endl; cout << "2、按姓名查找" << endl; int input = 0; cin >> input; if (input == 1) { //按编号查找 int id = 0; cout << "请输出你要查找的编号为：" << endl; cin >> id; int ret = this->Ison_Emp(id); if (ret != -1) { cout << "查找到此人信息 如下：" << endl; this->m_EmpArray[ret]->ShowInfo(); } else { cout << "查无此人" << endl; } } else if (input == 2) { //按姓名查找 string name; cout << "请输出你要查找人的姓名： " << endl; cin >> name; bool flag = false; for (int i = 0; i < this->m_EmpNum; i++) { if (this->m_EmpArray[i]->m_Name == name) { cout << "胜利找到员工，员工编号为：" << this->m_EmpArray[i]->m_Id << "此员工信息如下" << endl; this->m_EmpArray[i]->ShowInfo(); flag = true; } if (flag == false) { cout << "查无此人" << endl; } } } else { cout << "输出选项有误" << endl; } } system("pause"); system("cls");}void Worker_Manager::Sort_Emp(){ if (this->m_File) { cout << "该文件不存在或为空" << endl; system("pause"); system("cls"); } else { cout << "请抉择排序形式" << endl; cout << "1、按职工号升序" << endl; cout << "2、按职工号降序" << endl; int input = 0; cin >> input; for (int i = 0; i < this->m_EmpNum; i++) { int minOrmax = i; for (int j = i + 1; j < this->m_EmpNum; j++) { if (input == 1) { if (this->m_EmpArray[minOrmax]->m_Id > this->m_EmpArray[j]->m_Id) { minOrmax = j; } } else { if (this->m_EmpArray[minOrmax]->m_Id < this->m_EmpArray[j]->m_Id) { minOrmax = j; } } } if (minOrmax != i) { Worker* temp = this->m_EmpArray[i]; this->m_EmpArray[i] = this->m_EmpArray[minOrmax]; this->m_EmpArray[minOrmax] = temp; } } cout << "排序胜利,排序后果为：" << endl; this->save(); this->Show_Emp(); }}void Worker_Manager::Clean_File(){ cout << "确定清空？" << endl; cout << "1、确定" << endl; cout << "2、勾销" << endl; int input = 0; cout << "请输出： " << endl; cin >> input; if (input == 1) { ofstream ofs; ofs.open(TXT, ios::trunc); ofs.close(); if (this->m_EmpArray != NULL) { //删除堆区所有职工对象 for (int i = 0; i < this->m_EmpNum; i++) { delete this->m_EmpArray[i]; this->m_EmpArray[i] = NULL; } //删除堆区指针 delete[] this->m_EmpArray; this->m_EmpArray = NULL; this->m_File = true; this->m_EmpNum = 0; } cout << "清空胜利" << endl; } system("pause"); system("cls");}Worker_Manager::~Worker_Manager(){ 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; }职工治理.cpp
#include <iostream>using namespace std;#include <string>#include"worker manager.h"#include"worker.h"#include"employee.h"#include"boss.h"#include"manager.h"int main(){ //实例化对象,缩写一个货色，不便前面操作 worker_manager wm; int input = 0; do { wm.showmenu(); cout << "请输出你的抉择：" << endl; cin >> input; switch (input) { case 0: cout << "欢送下次应用" << endl; break; case 1: wm.Add_Emp(); break; case 2: wm.Show_Emp(); break; case 3: //删除职工 wm.Del_Emp(); break; case 4: //批改职工 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 break; } } while (input); system("pause"); return 0;}