C++项目（有注释超详细）

规范代码

定义函数或者类尽量放到头文件中，这样不容易出现重复命名和代码冗杂的问题。

#pragma once
#include<iostream>
using namespace std;
#include"worker.h"

class Manager :public Worker
{
public:
	//构造
	Manager(int id, string name, int dId);

	//显示
	virtual void showInfo() = 0;

	virtual string getdeptName() = 0;
};

例如我们需要一个worker类，最好不要在一个文件中先声明再用，否则代码可读性非常差，过几天自己可能都看不下去了。

#pragma once
#include<iostream>
using namespace std;
#include<string>

class Worker
{
public:

	virtual void showInfo() = 0;

	virtual string getdeptName() = 0;

	int m_Id;
	string m_Name;
	int m_DeptId;
};

worker的CPP文件，在这里定义worker的属性。
要注意一点就是项目文件一定要放到一个包里面，VS2019中可以用

#pragma 包名（项目名字）

来实现这个功能。

类似上面的情况，我们可以实现在不更改项目主体的情况下，对项目进行维护和修改

接下来再加几个功能，让项目更加饱满一些。

BOSS类

头文件

#pragma once
#pragma once
#include<iostream>
using namespace std;
#include"worker.h"

class Boss :public Worker
{
public:
	//构造
	Boss(int id, string name, int dId);

	//显示
	virtual void showInfo() = 0;

	virtual string getdeptName() = 0;
};

CPP文件

#include"boss.h"
#include<iostream>
using namespace std;
//构造
Boss::Boss(int id, string name, int dId)
{
	this->m_Id = id;
	this->m_Name = name;
	this->m_DeptId = dId;
}

void Boss::showInfo()
{
	cout << "编号" << this->m_Id;
	cout << "\t姓名" << this->m_Name;
	cout << "\t岗位" << this->getdeptName() << endl;
	cout << "职责（leader）" << endl;
}

string Boss::getdeptName()
{
	return string("leeader");
}

EMPLOYEE

头文件

#pragma once
#include<iostream>
using namespace std;
#include"worker.h"


class Employee :public Worker
{
public:

	Employee(int id,string name,int dId);//构造函数

	virtual void showInfo();

	virtual string getdeptName();

private:

};

CPP文件

#include<iostream>
#include"employee.h"
using namespace std;


Employee::Employee(int id, string name, int dId)//构造函数
{
	this->m_Id = id;
	this->m_Name = name;
	this -> m_DeptId = dId;

}
void Employee::showInfo()
{
	cout << "编号" << this->m_Id;
	cout<< "\t姓名" << this->m_Name;
	cout << "\t岗位" << this->getdeptName()<<endl;
	cout << "职责" << endl;	
}

//virtual string getdeptName();
string Employee::getdeptName()
{
	return string("员工");
}

workermanager

头文件

#pragma once//防止头文件多次包含
#include<iostream>
using namespace std;

class WorkerManager
{
public:

	WorkerManager();//构造

	//展示菜单
	void Show_Menu();
	//获取名称
	virtual 

	~WorkerManager();//析构

};

CPP文件

#include"workerManager.h"

WorkerManager::WorkerManager()
{

}

void WorkerManager::Show_Menu()
{
	cout << "0.退出" << endl;
	cout << "1.增加" << endl;
	cout << "2.显示" << endl;
	cout << "3.删除" << endl;
	cout << "4.修改" << endl;
	cout << "5.查找" << endl;
	cout << "6.按编号排序" << endl;
	cout << "7.清空文档" << endl;
	cout << endl;
}

WorkerManager::~WorkerManager()
{

}

主函数（只有60多行）

#include<iostream>
#include"workerManager.h"
#include"worker.h"
#include"employee.h"
#include"manager.h"
#include"boss.h"
using namespace std;

int main()
{	
	Worker* worker = NULL;
	worker = new Employee(1,"zhang",1);
	worker->showInfo();
	delete worker;//记得释放
	//实例化管理者对象
	WorkerManager wm;

	//Worker* worker = NULL;加不加都行
	worker = new Manager(2,"li manager",2);
	worker->showInfo();
	delete worker;

	worker = new Boss(2, "li manager", 2);
	worker->showInfo();
	delete worker;

	int choice = 0;//记录选项

	while (1)
	{
		wm.Show_Menu();

		cout << "输入选择" << endl;
		cin >> choice;

		switch (choice)
		{
		case 0://退出
			break;
		case 1://增加
			break;
		case 2://显示
			break;
		case 3://删除
			break;
		case 4://修改
			break;
		case 5://查找
			break;
		case 6://排序
			break;
		case 7://清空
			break;
		default:
			system("cls");
			break;
		}
	}

	//调用show
	wm.Show_Menu();


	system("pause");

	return 0;
}