c++-多态的练习
多态的几个小练习
练习一
#include <iostream>
#include <string>
using namespace std;
class Fu
{
public:
Fu(string name)
{
this->name = name;
}
virtual void func()
{
cout << "调用了Fu的函数"<<endl;
cout<<"Fu " << name <<" func()"<< endl;
}
string name;
};
class Zi :public Fu
{
public:
Zi(string name):Fu(name)
{
}
void func()
{
cout << "调用了Zi的函数" << endl;
cout << "Zi " << name << " func()"<< endl;
}
};
class Zi2 :public Fu
{
public:
Zi2(string name) : Fu(name)
{
}
void func()
{
cout << "调用了Zi2的函数" << endl;
cout << "Zi2 "<< name << " func()" << endl;
}
};
class Sun :public Zi
{
public:
Sun(string name) : Zi(name)
{
}
void func()
{
cout << "调用了Sun的函数" << endl;
cout << "Sun " << name << " func()"<<endl;
}
};
void fun(Fu &f)
{
f.func();//在此处应该发生多态
}
int main()
{
Fu f("FFFF");
Zi z("ZZZZ");
Zi2 z2("TTTT");
Sun s("SSSS");
fun(f);
fun(z);
fun(z2);
fun(s);
return 0;
}
练习二
#include <iostream>
#include <string>
using namespace std;
class Fu
{
public:
Fu(string name)
{
this->name = name;
}
virtual void func()
{
cout << "调用了Fu的函数"<<endl;
cout<<"Fu " << name <<" func()"<< endl;
}
string name;
};
class Zi :public Fu
{
public:
Zi(string name):Fu(name)
{
}
void func()
{
cout << "调用了Zi的函数" << endl;
cout << "Zi " << name << " func()"<< endl;
}
};
class Zi2 :public Fu
{
public:
Zi2(string name) : Fu(name)
{
}
void func()
{
cout << "调用了Zi2的函数" << endl;
cout << "Zi2 "<< name << " func()" << endl;
}
};
class Sun :public Zi
{
public:
Sun(string name) : Zi(name)
{
}
void func()
{
cout << "调用了Sun的函数" << endl;
cout << "Sun " << name << " func()"<<endl;
}
};
void fun(Fu &f)
{
f.func();//在此处应该发生多态
}
int main()
{
Fu f("FFFF");
Zi z("ZZZZ");
Zi2 z2("TTTT");
Sun s("SSSS");
fun(f);
fun(z);
fun(z2);
fun(s);
return 0;
}
练习三
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
using namespace std;
//把大象关进冰箱
//冰箱类
class IceBox
{
protected:
int size;//冰箱的容积
public:
IceBox(int size)
{
this->size = size;
}
virtual int getSize()
{
return this->size;
}
};
class Animal
{
protected:
int size;
public:
Animal(int size)
{
this->size = size;
}
virtual int getSize()
{
return this->size;
}
};
//大象类
class Elephent:public Animal
{
private:
string name;
public:
Elephent(int size, string name) :Animal(size)
{
this->name = name;
}
virtual int getESize()
{
return this->size;
}
string getName()
{
return this->name;
}
};
class Geli:public IceBox
{
private:
string name;
public:
Geli(int size , string name) :IceBox(size)
{
this->name = name;
}
virtual int getSize()
{
return this->size;
}
string getName()
{
return this->name;
}
};
void putEleIntoBox(IceBox *ib, Animal *an)
{
if (ib->getSize() > an->getSize())
{
cout << "把动物装进去了" << endl;
}
else
{
cout << "动物卡住了" << endl;
}
}
int main()
{
IceBox ib(100);
Animal an(200);
putEleIntoBox(&ib, &an);
Elephent *ep = new Elephent(200, "非洲象");
Geli *DongMZ = new Geli(300, "geli");
putEleIntoBox(DongMZ, ep);
system("pause");
return 0;
}
练习四
#define _CRT_SECURE_NO_WARNINGS
#include"iostream"
using namespace std;
class Programmer
{
public:
virtual int salaryPerMonth()=0;
virtual char * getName()=0;
};
class CppProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 20000;
}
virtual char * getName()
{
return "CppProgrammer";
}
};
class PhpProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 10000;
}
virtual char * getName()
{
return "PhpProgrammer";
}
};
class JavaProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 15000;
}
virtual char * getName()
{
return "JavaProgrammer";
}
};
class Girl
{
public:
virtual int Beauty()
{
}
virtual char * getName() {
}
};
class BaiFuMei : public Girl
{
public:
virtual int Beauty()
{
return 19999;
}
virtual char * getName()
{
return "BaiFuMei";
}
};
class NvDiaoSi : public Girl
{
public:
virtual int Beauty()
{
return 11000;
}
virtual char * getName()
{
return "NvDiaoSi";
}
};
class FengJie : public Girl
{
public:
virtual int Beauty()
{
return 14000;
}
virtual char * getName()
{
return "FengJie";
}
};
void Marry(Programmer &pp, Girl &gg)
{
if (pp.salaryPerMonth() > gg.Beauty())
{
cout << pp.getName() << "\t"<<"will marry "<<gg.getName() << endl;
}
else
{
cout << "hey " << pp.getName() << " don't make a day dream! you want to marry to " << gg.getName() <<"??"<< endl;
}
}
int main()
{
CppProgrammer cpp;
PhpProgrammer php;
JavaProgrammer java;
BaiFuMei bfm;
NvDiaoSi nds;
FengJie fj;
Marry(cpp, bfm);
Marry(php, bfm);
Marry(java, bfm);
Marry(php, nds);
Marry(java, bfm);
Marry(java, fj);
system("pause");
return 0;
}
练习五
#define _CRT_SECURE_NO_WARNINGS
#include"iostream"
using namespace std;
class Programmer
{
public:
virtual int salaryPerMonth()=0;
virtual char * getName()=0;
};
class CppProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 20000;
}
virtual char * getName()
{
return "CppProgrammer";
}
};
class PhpProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 10000;
}
virtual char * getName()
{
return "PhpProgrammer";
}
};
class JavaProgrammer :public Programmer
{
public:
virtual int salaryPerMonth()
{
return 15000;
}
virtual char * getName()
{
return "JavaProgrammer";
}
};
class Girl
{
public:
virtual int Beauty()
{
}
virtual char * getName() {
}
};
class BaiFuMei : public Girl
{
public:
virtual int Beauty()
{
return 19999;
}
virtual char * getName()
{
return "BaiFuMei";
}
};
class NvDiaoSi : public Girl
{
public:
virtual int Beauty()
{
return 11000;
}
virtual char * getName()
{
return "NvDiaoSi";
}
};
class FengJie : public Girl
{
public:
virtual int Beauty()
{
return 14000;
}
virtual char * getName()
{
return "FengJie";
}
};
void Marry(Programmer &pp, Girl &gg)
{
if (pp.salaryPerMonth() > gg.Beauty())
{
cout << pp.getName() << "\t"<<"will marry "<<gg.getName() << endl;
}
else
{
cout << "hey " << pp.getName() << " don't make a day dream! you want to marry to " << gg.getName() <<"??"<< endl;
}
}
int main()
{
CppProgrammer cpp;
PhpProgrammer php;
JavaProgrammer java;
BaiFuMei bfm;
NvDiaoSi nds;
FengJie fj;
Marry(cpp, bfm);
Marry(php, bfm);
Marry(java, bfm);
Marry(php, nds);
Marry(java, bfm);
Marry(java, fj);
system("pause");
return 0;
}
练习六
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
using namespace std;
//
class Girl
{
public:
int fangyu()
{
return 10;
}
};
class Boy
{
public:
virtual int fight()
{
return 5;
}
};
class higBoy:public Boy
{
public:
virtual int fight()
{
return 10;
}
};
class bugBoy :public Boy
{
public:
virtual int fight()
{
return 20;
}
};
//战斗方法
void catchGirl(Boy &bp, Girl &mp)
{
if (bp.fight() > mp.fangyu()) { //hp->getAd 发生了多态
cout << "女孩被追到了" << endl;
}
else {
cout << "没追到" << endl;
}
}
int main(void)
{
Girl mp;
Boy b1;
higBoy b2;
bugBoy b3;
catchGirl(b1, mp);
catchGirl(b2, mp);
catchGirl(b3, mp);
// system("pause");
return 0;
}
练习七
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class Person
{
public:
Person(char * name,int age)
{
this->name = name;
this->age = age;
}
virtual void aryYouOK()
{
cout << "name: " << this->name << endl;
cout << "age: " << this->age << endl;
}
string getName()
{
return name;
}
int getAge()
{
return age;
}
private:
string name;
int age;
};
class Teacher : public Person
{
public:
Teacher(char * name, int age, int wage) :Person(name, age)
{
this->wage = wage;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "wage:" << this->wage << endl;
}
private:
int wage;
};
class Student:public Person
{
public:
Student(char * name, int age, char * work) :Person(name, age)
{
this->work = work;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "work:" << this->work << endl;
}
private:
string work;
};
void seeHello(Person & p)
{
p.aryYouOK();
}
int main(void)
{
Student stu("Íõ¶þ¹·", 18, "ѧϰ");
Teacher tea("°×½à",22, 8000);
seeHello(stu);
cout << endl;
seeHello(tea);
cout << endl;
// system("pause");
return 0;
}
练习八
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class Person
{
public:
Person(char * name,int age)
{
this->name = name;
this->age = age;
}
virtual void aryYouOK()
{
cout << "name: " << this->name << endl;
cout << "age: " << this->age << endl;
}
string getName()
{
return name;
}
int getAge()
{
return age;
}
private:
string name;
int age;
};
class Teacher : public Person
{
public:
Teacher(char * name, int age, int wage) :Person(name, age)
{
this->wage = wage;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "wage:" << this->wage << endl;
}
private:
int wage;
};
class Student:public Person
{
public:
Student(char * name, int age, char * work) :Person(name, age)
{
this->work = work;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "work:" << this->work << endl;
}
private:
string work;
};
void seeHello(Person & p)
{
p.aryYouOK();
}
int main(void)
{
Student stu("Íõ¶þ¹·", 18, "ѧϰ");
Teacher tea("°×½à",22, 8000);
seeHello(stu);
cout << endl;
seeHello(tea);
cout << endl;
// system("pause");
return 0;
}
练习九
#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <string>
#include <cstdlib>
using namespace std;
class Person
{
public:
Person(char * name,int age)
{
this->name = name;
this->age = age;
}
virtual void aryYouOK()
{
cout << "name: " << this->name << endl;
cout << "age: " << this->age << endl;
}
string getName()
{
return name;
}
int getAge()
{
return age;
}
private:
string name;
int age;
};
class Teacher : public Person
{
public:
Teacher(char * name, int age, int wage) :Person(name, age)
{
this->wage = wage;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "wage:" << this->wage << endl;
}
private:
int wage;
};
class Student:public Person
{
public:
Student(char * name, int age, char * work) :Person(name, age)
{
this->work = work;
}
virtual void aryYouOK()
{
Person::aryYouOK();
cout << "work:" << this->work << endl;
}
private:
string work;
};
void seeHello(Person & p)
{
p.aryYouOK();
}
int main(void)
{
Student stu("Íõ¶þ¹·", 18, "ѧϰ");
Teacher tea("°×½à",22, 8000);
seeHello(stu);
cout << endl;
seeHello(tea);
cout << endl;
// system("pause");
return 0;
}
c++-多态的练习的更多相关文章
- Java中的多态
1.多态:具有表现多种形态的能力的特征 父类: public abstract class Animal {public abstract void Say();} 子类: public class ...
- C# 工厂模式+虚方法(接口、抽象方法)实现多态
面向对象语言的三大特征之一就是多态,听起来多态比较抽象,简而言之就是同一行为针对不同对象得到不同的结果,同一对象,在不同的环境下得到不同的状态. 实例说明: 业务需求:实现一个打开文件的控制台程序的d ...
- C#非常重要基础之多态
前几天看了一位同志的博客,写的是关于他自己去支付宝面试的经历.过程大体是这样的:问答的时候,前面部分,作者都应答如流,说起自己经验如何之丰富,最后面试官问了作者一个问题:请简述多态的概念和作用.结果这 ...
- C++多态详解
多态是面向对象的程序设计的关键技术.多态:调用同一个函数名,可以根据需要但实现不同的功能.多态体现在两个方面,我们以前学过的编译时的多态性(函数重载)和现在我们这一章将要学习的运行时的多态性(虚函数) ...
- 【那些年关于java多态应用】
1.多态:具有表现多种形态的能力的特征 父类: public abstract class Animal { public abstract void Say();} 子类: public class ...
- JAVA多态
多态是指当系统A访问系统B的服务时,系统B可以通过多种方式来提供服务,而这一切对系统A是透明的.比如动物园的饲养员能够给各种各样的动物喂食.下图显示了饲养员Feeder,食物Food和动物Animal ...
- C#多态“说来也说”——逻辑层BLL中的多态使用
本文版权归博客园和作者吴双本人共同所有.欢迎转载,转载和爬虫请注明原文地址 http://www.cnblogs.com/tdws/p/5861842.html 昨天晚上,有个朋友说学了好久,依然没搞 ...
- java多态的理解
面向对象语言中的类有三个特征,封装.继承.多态.封装与继承很好理解,那什么是多态呢? 1.什么是多态? 多态的定义:指允许不同类的对象对同一消息做出响应.即同一消息可以根据发送对象的不同而采用多种不同 ...
- java中如何实现多态
复习基础知识 多态,就是重载和重写.重载发生在一个类中.重写发生在子类,意思就是子类重写父类相同名称的方法.刚学语言有的东西,不必搞得那么清楚,只有知道怎么用就行了,有的问题你要想真正把它搞得很懂,短 ...
- OC多态
要点: 1.多种形态,引用的多种形态对于一个引用变量,可以指向任何类的对象.对于一个父类的引用(类与类之间有一种继承关系),可以指向子类,也可以指向本类,指向的类型不同.当通过此引用向对象发送消息,调 ...
随机推荐
- 2019-9-20：渗透测试，基础学习,phpstudy搭建Wordpress，Burpsuite抓取WorePress cms的post包
一.搭建WordPress的cms网站管理系统 1,下载Wordpress cms源码,下载地址:https://wordpress.org/download/ 2,将源码解压到phpstudy目录下 ...
- 网页解析之BeautifulSoup
介绍及安装 Beautiful Soup 是一个HTML/XML的解析器,主要的功能也是如何解析和提取 HTML/XML 数据. BeautifulSoup 用来解析 HTML 比较简单,API非常人 ...
- Airtest介绍与脚本入门
前言 通过阅读本小节教程,你将了解以下内容: 一个Airtest脚本例子的详细解析 如何在Python脚本中调用Airtest接口 图片语句的参数介绍 Airtest介绍 Airtest是一款基于Py ...
- petri 网理论与研究（第一节140915）
成绩 :70 大作业 和 30 的最后讨论 petri 是一个人的名字. 网状结构的信息流模型,和自动机有点像 理论体系发展比较慢 应用很远 1 EN,P/T,Pr/T,CPN,关系网……
- 每个开发人员都应该知道的11个Linux命令
本文主要挑选出读者有必要首先学习的 11 个 Linux 命令,如果不熟悉的读者可以在虚拟机或云服务器上实操下,对于开发人员来说,能熟练掌握 Linux 做一些基本的操作是必要的! 事不宜迟,这里有 ...
- Magicodes.Sms短信库的封装和集成
简介 Magicodes.Sms是心莱团队封装的短信服务库,已提供Abp模块的封装. Nuget 新的包 名称 说明 Nuget Magicodes.Sms.Aliyun 阿里云短信库 Magicod ...
- iOS开发经常用到的国外网站，让我们接轨国外的最新技术吧！
转自:http://www.bubuko.com/infodetail-787949.html 工欲善其事必先利其器,最近发现临时查找一些东西容易浪费时间,花了点时间整理一下常用的网站,方便以后备用. ...
- Creating your first iOS Framework
转自:https://robots.thoughtbot.com/creating-your-first-ios-framework If you’ve ever tried to create yo ...
- mac端口占用
lsof -i tcp:port 可以查看该端口被什么程序占用,并显示PID port 替换成端口号, eg: lsof -i tcp:8081 kill pid 杀死PID
- I/O中断原理
目录 I/O中断原理 前言 什么是中断 中断类型 硬件中断 软件中断 I/O中断流程 无中断 有中断 中断处理 相关文献 I/O中断原理 前言 在Windows内核原理-同步IO与异步IO和<高 ...