[C++] 纯文本查看 复制代码
cmake_minimum_required(VERSION 3.19) project(main) set(CMAKE_CXX_STANDARD 14) include_directories(.) add_executable(main main.cpp worker.h workerManager.cpp workerManager.h employee.cpp employee.h manager.cpp manager.h boss.cpp boss.h)[C++] 纯文本查看 复制代码
#include "workerManager.h" int main() { WorkerManager wm; int choice = 0; while (true) { wm.showMenu(); cout << "请输入您的选择："; cin >> choice; switch (choice) { case 0: wm.exitSystem(); break; case 1: wm.addEmp(); break; case 2: wm.showEmpInfo(); break; case 3: wm.delEmp(); break; case 4: wm.modEmp(); break; case 5: wm.findEmp(); break; case 6: wm.sortEmp(); break; case 7: wm.cleanEmp(); break; default: system("clear"); break; } } return 0; }[C++] 纯文本查看 复制代码
#pragma once #include "worker.h" #include <iostream> #include <string> #include <fstream> #define FILENAME "empFile.txt" using namespace std; class WorkerManager { public: WorkerManager(); void showMenu(); void exitSystem(); void addEmp(); void saveFile(); int getEmpNumFromFile(); void initEmpArray(); void showEmpInfo(); int isExist(int id); // 根据职工编号判断是否存在，返回数组下标，-1表示不存在 void delEmp(); void modEmp(); void findEmp(); void sortEmp(); void cleanEmp(); ~WorkerManager(); private: int empNum; Worker **empArr; // Worker *的指针数组，多态保存每种职工 };[C++] 纯文本查看 复制代码
#include "workerManager.h" #include "employee.h" #include "manager.h" #include "boss.h" WorkerManager::WorkerManager() { int num = this->getEmpNumFromFile(); // 文件不存在或者内容为空 if (num == 0) { this->empNum = 0; this->empArr = NULL; return; } this->empNum = num; this->empArr = new Worker*[num]; // 申请数组空间 this->initEmpArray(); // 初始化职工信息 } void WorkerManager::showMenu() { cout << "*************************" << endl; cout << "*** 欢迎使用职工管理系统 ***" << 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 << "***** 0、退出管理程序 *****" << endl; cout << "*************************" << endl; } void WorkerManager::exitSystem() { cout << "欢迎下次使用" << endl; exit(0); } Worker *workerFactory(int id, string name, int deptId) { Worker *worker = NULL; switch (deptId) { case 1: // 普通职工 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: break; } return worker; } void WorkerManager::addEmp() { cout << "请输入增加职工数量：" << endl; int addNum = 0; cin >> addNum; if (addNum <= 0) { cout << "输入有误" << endl; return; } // 计算新空间大小 int newSize = this->empNum + addNum; // 开辟新空间 Worker **newSpace = new Worker *[newSize]; // 将原空间里内容拷贝到新空间下 if (this->empArr != NULL) { for (int i = 0; i < this->empNum; ++i) { newSpace[i] = this->empArr[i]; } } // 输入新数据 for (int i = 0; i < addNum; ++i) { int id; string name; int deptId; 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 >> deptId; Worker *worker = workerFactory(id, name, deptId); newSpace[this->empNum + i] = worker; } // 释放原有空间 delete[] this->empArr; // 更改新空间指向 this->empArr = newSpace; // 更新员工个数 this->empNum = newSize; // 保存数据到文件 this->saveFile(); cout << "成功添加" << addNum << "名新职工" << endl; } void WorkerManager::saveFile() { ofstream ofs(FILENAME, ios::out); for (int i = 0; i < this->empNum; ++i) { ofs << this->empArr[i]->getId() << " " << this->empArr[i]->getName() << " " << this->empArr[i]->getDeptId() << endl; } ofs.close(); } int WorkerManager::getEmpNumFromFile() { int empNumFromFile = 0; ifstream ifs(FILENAME, ios::in); // 文件不存在，返回职工数0 if (!ifs.is_open()) { ifs.close(); return empNumFromFile; } // 读一个字符，看文件是否到eof，判断文件是否为空 // char ch; // ifs >> ch; // if (ifs.eof()) int id; string name; int deptId; while (ifs >> id && ifs >> name && ifs >> deptId) { empNumFromFile++; } ifs.close(); return empNumFromFile; } void WorkerManager::initEmpArray() { ifstream ifs(FILENAME, ios::in); int id; string name; int deptId; int index = 0; while (ifs >> id && ifs >> name && ifs >> deptId) { Worker *worker = workerFactory(id, name, deptId); this->empArr[index++] = worker; } ifs.close(); } void WorkerManager::showEmpInfo() { if (this->empNum == 0) { cout << "文件不存在或记录为空！" << endl; return; } for (int i = 0; i < this->empNum; ++i) { // 利用多态调用接口 this->empArr[i]->showInfo(); } } int WorkerManager::isExist(int id) { int index = -1; for (int i = 0; i < this->empNum; ++i) { if (this->empArr[i]->getId() == id) { index = i; break; } } return index; } void WorkerManager::delEmp() { if (this->empNum == 0) { cout << "职工记录为空" << endl; return; } cout << "请输入想要删除的职工编号：" << endl; int id = 0; cin >> id; int index = this->isExist(id); if (index == -1) { cout << "删除失败，未找到该职工" << endl; return; } // 删除 index 位置的数据 for (int i = index; i < this->empNum - 1; i++) { this->empArr[i] = this->empArr[i + 1]; } this->empNum--; // 删除后数据同步到文件中 this->saveFile(); cout << "删除成功" << endl; } void WorkerManager::modEmp() { if (this->empNum == 0) { cout << "职工记录为空" << endl; return; } cout << "请输入修改职工的编号：" << endl; int id; cin >> id; int ret = this->isExist(id); if (ret == -1) { cout << "修改失败，查无此人" << endl; return; } // 找到编号的职工，先释放空间 delete this->empArr[ret]; int newId; string name; int deptId; cout << "查到：" << id << "号职工，请输入新职工号：" << endl; cin >> newId; cout << "请输入新职工姓名：" << 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 >> deptId; Worker *worker = workerFactory(newId, name, deptId); this->empArr[ret] = worker; this->saveFile(); cout << "修改成功" << endl; } void WorkerManager::findEmp() { if (this->empNum == 0) { cout << "职工记录为空" << endl; return; } cout << "请输入查找的方式：" << endl; cout << "1、按职工编号查找" << endl; cout << "2、按姓名查找" << endl; int select = 0; cin >> select; if (select == 1) { cout << "请输入查找的职工编号：" << endl; int id; cin >> id; int ret = this->isExist(id); if (ret != -1) { this->empArr[ret]->showInfo(); } else { cout << "查无此人" << endl; } } else if (select == 2) { cout << "请输入查找的姓名：" << endl; string name; cin >> name; bool found = false; for (int i = 0; i < this->empNum; i++) { if (this->empArr[i]->getName() == name) { found = true; this->empArr[i]->showInfo(); } } if (!found) { cout << "查无此人" << endl; } } else { cout << "输入选项有误" << endl; } } void WorkerManager::sortEmp() { if (this->empNum == 0) { cout << "职工记录为空" << endl; return; } 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; // 选择排序 for (int i = 0; i < this->empNum - 1; i++) { int minOrMax = i; for (int j = i + 1; j < this->empNum; j++) { if (select == 1) { // 升序 if (this->empArr[minOrMax]->getId() > this->empArr[j]->getId()) { minOrMax = j; } } else { // 降序 if (this->empArr[minOrMax]->getId() < this->empArr[j]->getId()) { minOrMax = j; } } } // 交换位置 if (minOrMax != i) { Worker *tmp = this->empArr[i]; this->empArr[i] = this->empArr[minOrMax]; this->empArr[minOrMax] = tmp; } } cout << "排序成功，排序后结果为：" << endl; this->saveFile(); this->showEmpInfo(); } void WorkerManager::cleanEmp() { cout << "确认清空？" << endl; cout << "1、确认" << endl; cout << "2、返回" << endl; int select = 0; cin >> select; if (select != 1) { return; } // 打开模式 trunc 如果存在删除并重新创建文件 ofstream ofs(FILENAME, ios::trunc); ofs.close(); if (this->empArr != NULL) { for (int i = 0; i < this->empNum; i++) { if (this->empArr[i] != NULL) { delete this->empArr[i]; } } this->empNum = 0; delete[] this->empArr; this->empArr = NULL; } cout << "清空成功！" << endl; } WorkerManager::~WorkerManager() { if (this->empArr != NULL) { for (int i = 0; i < this->empNum; ++i) { if (this->empArr[i] != NULL) { delete this->empArr[i]; } } delete[] this->empArr; this->empArr = NULL; } }[C++] 纯文本查看 复制代码
#pragma once #include <iostream> #include <string> using namespace std; class Worker { public: // 显示个人信息 virtual void showInfo() = 0; int getId() { return id; } string getName() { return name; } int getDeptId() { return deptId; } // 获取岗位名称 string getDeptName() { string deptName; switch (deptId) { case 1: deptName = "普通职工"; break; case 2: deptName = "经理"; break; case 3: deptName = "老板"; break; default: break; } return deptName; } protected: int id; // 职工编号 string name; // 职工姓名 int deptId; // 职工所在部门名称编号 };[C++] 纯文本查看 复制代码
#ifndef MAIN_BOSS_H #define MAIN_BOSS_H #include "worker.h" class Boss : public Worker { public: Boss(int id, string name, int deptId); void showInfo() override; }; #endif // MAIN_BOSS_H[C++] 纯文本查看 复制代码
#include "boss.h" Boss::Boss(int id, string name, int deptId) { this->id = id; this->name = name; this->deptId = deptId; } void Boss::showInfo() { cout << "职工编号：" << id << "\t职工姓名：" << name << "\t岗位：" << getDeptName() << "\t岗位职责：管理公司所有事务" << endl; }[C++] 纯文本查看 复制代码
#ifndef MAIN_MANAGER_H #define MAIN_MANAGER_H #include "worker.h" class Manager : public Worker { public: Manager(int id, string name, int deptId); void showInfo() override; }; #endif //MAIN_MANAGER_H[C++] 纯文本查看 复制代码
#include "manager.h" Manager::Manager(int id, string name, int deptId) { this->id = id; this->name = name; this->deptId = deptId; } void Manager::showInfo() { cout << "职工编号：" << id << "\t职工姓名：" << name << "\t岗位：" << getDeptName() << "\t岗位职责：完成老板交给的任务，并下发任务给员工" << endl; }[C++] 纯文本查看 复制代码
#ifndef MAIN_EMPLOYEE_H #define MAIN_EMPLOYEE_H #include "worker.h" class Employee: public Worker{ public: Employee(int id, string name, int deptId); void showInfo() override; }; #endif //MAIN_EMPLOYEE_H[C++] 纯文本查看 复制代码
#include "employee.h" Employee::Employee(int id, string name, int deptId) { // 给从基类继承过来的属性赋值，不能使用参数列表的方式 id(id) this->id = id; this->name = name; this->deptId = deptId; } void Employee::showInfo() { cout << "职工编号：" << id << "\t职工姓名：" << name << "\t岗位：" << getDeptName() << "\t岗位职责：完成经理交给的任务" << endl; }