标签：HPP string 继承 hpp class 实验 include public

实验任务4

pets.hpp:

#ifndef PETS_HPP
#define PETS_HPP
using namespace std;
#include<iostream>
#include<string>
class MachinePets
{
public:
    MachinePets() {};
    MachinePets(const string s)
    {
        nickname = s;
    }
    string get_nickname()
    {
        return nickname;
    }
    virtual string talk()
    {
        return "";
    }
    void machinepets(const string s)
    {
        nickname = s;
    }
private:
    string nickname;
};
class PetCats :public MachinePets
{
public:
    PetCats(const string s)
    {
        machinepets(s);
    }
    string talk()
    {
        return "miao wu";
    }
};
class PetDogs :public MachinePets
{
public:
    PetDogs(const string s)
    {
        machinepets(s);
    }
    string talk()
    {
        return "wang wang";
    }
};


#endif PETS_HPP

task4.hpp:

#include <iostream>
#include "pets.hpp"
void play(MachinePets* ptr)
{
    std::cout << ptr->get_nickname() << " says " << ptr->talk() <<
        std::endl;
}
int main()
{
    PetCats cat("miku");
    PetDogs dog("da huang");
    play(&cat);
    play(&dog);
}

运行结果

 

 实验任务3

battery.hpp:

#ifndef BATTERY_HPP
#define BATTERY_HPP
using namespace std;
class Battery
{
public:
    Battery(double capa = 70) :capacity(capa) {};
    double get_capacity()
    {
        return capacity;
    }
private:
    double capacity;
};

#endif BATTERY_HPP

car.hpp:

#ifndef CAR_HPP
#define CAR_HPP
#include<string>
#include<iostream>
using namespace std;
class Car
{
public:
    Car() {}
    Car(string ma, string mo, int ye, double od = 0) :maker(ma), model(mo), year(ye), odometers(od) {}
    void info()
    {
        cout << "maker:           " << maker << endl;
        cout << "model:           " << model << endl;
        cout << "year:            " << year << endl;
        cout << "odometers:       " << odometers << endl;
    }
    void update_odometers(double a)
    {
        if (a < odometers)
        {
            cout << "wrong update" << endl;
        }
        else
        {
            odometers = a;
        }
    }
    string get_maker()
    {
        return maker;
    }
    string get_model()
    {
        return model;
    }
    int get_year()
    {
        return year;
    }
    double get_odometers()
    {
        return odometers;
    }
    void car(string ma, string mo, int ye)
    {
        maker = ma;
        model = mo;
        year = ye;
    }
private:
    string maker;
    string model;
    int year;
    double odometers;
};
#endif CAR_HPP

electriccar.hpp:

#include"car.hpp"
#include"battery.hpp"
#ifndef ELECTRICCAAR_HPP
#define ELECTRICCAAR_HPP
#include<iostream>
using namespace std;
class ElectricCar :public Car
{
public:
    ElectricCar(string ma, string mo, int ye)
    {
        car(ma, mo, ye);
    }
    void info()
    {
        cout << "maker:           " << get_maker() << endl;
        cout << "model:           " << get_model() << endl;
        cout << "year:            " << get_year() << endl;
        cout << "odometers:       " << get_odometers() << endl;
        cout << "capacity:        " << battery.get_capacity() << "-kWh" << endl;
    }
private:
    Battery battery;
};
#endif ELECTRICCAAR_HPP

task3.hpp:

#include <iostream>
#include "electricCar.hpp"
int main()
{
    using namespace std;
    // test class of Car
    Car oldcar("Audi", "a4", 2016);
    cout << "--------oldcar's info--------" << endl;
    oldcar.update_odometers(25000);
    oldcar.info();
    cout << endl;
    // test class of ElectricCar
    ElectricCar newcar("Tesla", "model s", 2016);
    newcar.update_odometers(2500);
    cout << "\n--------newcar's info--------\n";
    newcar.info();
}

运行结果：

 

标签：HPP,string,继承,hpp,class,实验,include,public
来源： https://www.cnblogs.com/KCYSNE/p/15645313.html

本站声明： 1. iCode9 技术分享网（下文简称本站）提供的所有内容，仅供技术学习、探讨和分享；
2. 关于本站的所有留言、评论、转载及引用，纯属内容发起人的个人观点，与本站观点和立场无关；
3. 关于本站的所有言论和文字，纯属内容发起人的个人观点，与本站观点和立场无关；
4. 本站文章均是网友提供，不完全保证技术分享内容的完整性、准确性、时效性、风险性和版权归属；如您发现该文章侵犯了您的权益，可联系我们第一时间进行删除；
5. 本站为非盈利性的个人网站，所有内容不会用来进行牟利，也不会利用任何形式的广告来间接获益，纯粹是为了广大技术爱好者提供技术内容和技术思想的分享性交流网站。