C++ 简单的demo

demo 熟悉一下C++代码编写

1. main.cpp

//
//  main.cpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/11.
//#include 
#include  // 文件操作
using namespace std;
#include "workerManager.hpp"
#include "worker.hpp"
#include "employee.hpp"
#include "manager.hpp"
#include "boss.hpp"void test()
{Worker *worker = NULL;worker = new Employee(001, "张三", 1);worker->showInfo();delete worker;worker = new Manager(002, "李经理", 2);worker->showInfo();delete worker;worker = new Boss(003, "王总", 3);worker->showInfo();delete worker;}int main(int argc, const char * argv[]) {
//    test();
//    return 0;WorkerManager wm;wm.showMenu();int choice = 0;while (true) {wm.showMenu();cout << "请输入选择：" << endl;cin >> choice;switch (choice) {case 0:{cout << " 选择了0 " << endl;wm.exitSystem();break;}case 1:{wm.addEmployee();cout << " 选择了1 " << endl;break;}case 2:{wm.show_Emp();cout << " 选择了2 " << endl;break;}case 3:{wm.delete_Emp();cout << " 选择了3 " << endl;break;}case 4:{wm.modify_Emp();cout << " 选择了4 " << endl;break;}case 5:{cout << " 选择了5 " << endl;break;}case 6:{cout << " 选择了6 " << endl;break;}case 7:{cout << " 选择了7 " << endl;break;}default:break;}}return 0;
}

2. worker.hpp

//
//  worker.hpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//
#pragma once
#include 
using namespace std;#ifndef worker_hpp
#define worker_hpp#include /**抽象职工类*/
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; // 职工所在部门名称编号virtual ~Worker() {}
};#endif /* worker_hpp */

3. workerManager.cpp

//
//  workerManager.cpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//#include "workerManager.hpp"// 生命周期
WorkerManager::WorkerManager()
{cout << "WorkerManager()" << endl;ifstream ifs;ifs.open(FILEPATH, ios::in);// 1. 判断文件是否存在if (!ifs.is_open()){cout << "文件不存在" << endl;this->m_EmpNum = 0;this->m_EmpArray = NULL;this->m_isFileEmpty = true;ifs.close();return;}// 2.文件存在，但是文件为空char ch;ifs >> ch;if (ifs.eof()){cout << "文件为空" << endl;this->m_EmpNum = 0;this->m_EmpArray = NULL;this->m_isFileEmpty = true;ifs.close();return;}else{this->m_isFileEmpty = false;ifs.close();}// 3.文件不为空，统计人数this->get_EmpNum();this->m_EmpArray = new Worker *[this->m_EmpNum];this->int_Emp();//    // 测试输出
//    for (int i = 0; i < m_EmpNum; i++)
//    {
//        cout << "职工号：" << this->m_EmpArray[i]->m_Id
//             << "职工姓名：" << this->m_EmpArray[i]->m_Name
//        << "职工编号：" << this->m_EmpArray[i]->m_DeptId << endl;
//    }
}WorkerManager::~WorkerManager()
{if (this->m_EmpArray != NULL){delete [] this->m_EmpArray;this->m_EmpArray = NULL;}
}// 需求方法
void WorkerManager::showMenu()
{cout << "~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~" << endl;cout << "~~~~~~~~ 欢迎使用职工管理系统 ~~~~~~~~~~~" << endl;cout << "~~~~~~~~   0.退出管理程序    ~~~~~~~~~~~" << endl;cout << "~~~~~~~~   1.增加职工信息    ~~~~~~~~~~~" << endl;cout << "~~~~~~~~   2.显示职工信息    ~~~~~~~~~~~" << endl;cout << "~~~~~~~~   3.删除职工信息    ~~~~~~~~~~~" << endl;cout << "~~~~~~~~   4.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;
}void WorkerManager::exitSystem()
{cout << "退出职工系统" << endl;exit(0);
}void WorkerManager:: addEmployee()
{cout << "请输入添加职工数量：" << endl;int addNum = 0;cin >> addNum;if (addNum > 0){// 新数组的元素的个数int newSize = this->m_EmpNum + addNum;cout << "newSize: " << this->m_EmpNum << endl;// 创建新数组，用来存放指针的指针Worker ** newSpace = new Worker*[newSize];// 1. 先把原来的数组拷贝过来if (this->m_EmpArray != NULL){for (int i = 0; i < this->m_EmpNum; i++){newSpace[i] = this->m_EmpArray[i];}}// 2.再批量添加新数据for (int i = 0; i < addNum; i++){int id,dSelect; // 编号、部门string name; // 姓名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 << "请选择该职工岗位：" << endl;cout << "1. 普通职工" << endl;cout << "2. 经理" << endl;cout << "3. 老板" << endl;cin >> dSelect;Worker *woker = NULL;switch (dSelect) {case 1:woker = new Employee(id, name, 1);break;case 2:woker = new Manager(id, name, 2);break;case 3:woker = new Boss(id, name, 3);break;default:break;}newSpace[this->m_EmpNum + i] = woker;}delete [] this->m_EmpArray;this->m_EmpArray = newSpace;this->m_EmpNum = newSize;this->save();}else{cout << "输入有误" << endl;}
}void WorkerManager:: save()
{ofstream ofs;ofs.open(FILEPATH, 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();
}int WorkerManager:: get_EmpNum()
{ifstream ifs;ifs.open(FILEPATH, ios::in);int id;string name;int dId;int num = 0;while (ifs >> id && ifs >> name && ifs >> dId){num++;}ifs.close();cout << "人数：" << num << endl;this->m_EmpNum = num;return num;
}void WorkerManager::int_Emp()
{ifstream ifs;ifs.open(FILEPATH,ios::in);int id;string name;int dId;int index = 0;while (ifs >> id && ifs >> name && ifs >>dId){Worker *worker = NULL;if (dId == 1){worker = new Employee(id, name, dId);}else if (dId == 2){worker = new Manager(id, name, dId);}else if (dId == 3){worker = new Boss(id, name, dId);}this->m_EmpArray[index] = worker;index ++;}
}void WorkerManager:: show_Emp()
{if (this->m_isFileEmpty){cout << "文件不存在或为空" << endl;}else{for (int i = 0; i < m_EmpNum; i++){// 利用多态调用接口this->m_EmpArray[i]->showInfo();}}
}void WorkerManager:: delete_Emp()
{cout << "请输入想要删除的职工编号：" << endl;int id = 0;cin >> id;int index = this->isExit(id);if (index != -1){for (int i = index; i < this->m_EmpNum - 1; i++){this->m_EmpArray[i] = this->m_EmpArray[i+1]; // 数据前移}this->m_EmpNum --;// 数据同步更新到文件中this->save();cout << "删除成功" << endl;}else{cout << "未找到该职工" << endl;}
}int WorkerManager:: isExit(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 WorkerManager:: modify_Emp()
{if (this->m_isFileEmpty){cout << "文件不存在或为空" << endl;}else{cout << "请输入要删除的职工编号" << endl;int id;cin >> id;// 先删除原来的职工int res = this->isExit(id);if (res != -1){delete  this->m_EmpArray[res];}// 再添加新职工this->addEmployee();}
}

4. workerManager.hpp

//
//  workerManager.hpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//
#pragma once
#include 
using namespace std;#ifndef workerManager_hpp
#define workerManager_hpp#include 
#include "worker.hpp"
#include "employee.hpp"
#include "manager.hpp"
#include "boss.hpp"
#include #define FILEPATH "/Users/runhe_ios_jh/Documents/07_自动化测试/empFile.txt"class WorkerManager
{
public:// 生命周期WorkerManager();~WorkerManager();// 方法void showMenu();void exitSystem();void addEmployee();void show_Emp();void delete_Emp();void modify_Emp();private:int get_EmpNum();void int_Emp();int isExit(int id);void save();// 属性
//    要给一个初始值int m_EmpNum = 0; // 职工人数Worker ** m_EmpArray = NULL; // 职工数组指针bool m_isFileEmpty;};#endif /* workerManager_hpp */

5. employee.cpp

//
//  employee.cpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//#include "employee.hpp"
Employee:: Employee(int id, string name, int dId)
{this->m_Id = id;this->m_Name = name;this->m_DeptId = dId;cout << "员工创建" << endl;
}void Employee:: showInfo()
{cout << "职工编号：" << this->m_Id<< "\t职工姓名：" << this->m_Name<< "\t岗位：" << this->getDeptName()<< "\t岗位职责：完成经历交给的任务" << endl;
}string Employee:: getDeptName()
{return string("员工");
}Employee::~Employee()
{cout << "员工释放" << endl;cout << "---" << endl;
}

6. employee.hpp

//
//  employee.hpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//
#pragma once
#include 
#include "worker.hpp"
using namespace std;#ifndef employee_hpp
#define employee_hpp#include class Employee: public Worker
{
public:// 构造函数Employee(int id, string name, int dId);// 显示个人信息virtual void showInfo() override;// 获取员工部门信息virtual string getDeptName() override;~Employee();
};
#endif /* employee_hpp */

7. manager.cpp

//
//  manager.cpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//#include "manager.hpp"
Manager:: Manager(int id, string name, int dId)
{this->m_Id = id;this->m_Name = name;this->m_DeptId = dId;cout << "经理创建" << endl;
}void Manager:: showInfo()
{cout << "经理编号：" << this->m_Id<< "\t经理姓名：" << this->m_Name<< "\t岗位：" << this->getDeptName()<< "\t岗位职责：安排任务" << endl;
}string Manager:: getDeptName()
{return string("经理");
}Manager:: ~Manager()
{cout << "经理释放" << endl;cout << "---" << endl;
}

8. manager.hpp

//
//  manager.hpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//
#pragma once
#include 
#include "worker.hpp"
using namespace std;#ifndef manager_hpp
#define manager_hpp#include class Manager: public Worker
{
public:Manager(int id, string name, int dId);virtual void showInfo() override;virtual string getDeptName() override;~Manager();
};#endif /* manager_hpp */

9. boss.cpp

//
//  boss.cpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//#include "boss.hpp"
Boss:: Boss(int id, string name, int dId)
{this->m_Id = id;this->m_Name = name;this->m_DeptId = dId;cout << "Boss创建" << endl;
}void Boss:: showInfo()
{cout << "Boss编号：" << this->m_Id<< "\tBoss姓名：" << this->m_Name<< "\t岗位：" << this->getDeptName()<< "\t岗位职责：Boss赚钱" << endl;
}string Boss:: getDeptName()
{return string("Boss");
}Boss:: ~Boss()
{cout << "Boss释放" << endl;cout << "---" << endl;
}

10. boss.hpp

//
//  boss.hpp
//  Cppbase
//
//  Created by Runhe_iOS_JH on 2022/8/26.
//
#pragma once
#include 
#include "worker.hpp"
using namespace std;#ifndef boss_hpp
#define boss_hpp#include class Boss: public Worker
{
public:Boss(int id, string name, int dId);virtual void showInfo() override;virtual string getDeptName() override;~Boss();
};#endif /* boss_hpp */

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