c++ 植物類 繼承多態 菱形繼承

c++ 植物類 繼承多態 菱形繼承

#pragma once//頭文件
 
#include <iostream>
#include<string>
using namespace std;
 
//
// 1.實現以下幾個類的成員函數
// 2.實現一個虛函數的覆蓋及調用
// 3.處理菱形繼承問題。
//
 
// 植物
class Botany
{
public:
    Botany(const string&  name);
    virtual ~Botany();
    virtual void Display();
    Botany(const Botany& b);
protected:
    string _name;//名字
    static size_t _sCount;
};
 
class Tree : public Botany
{
public:
    //...實現默認的成員函數
 
    Tree(const string&  name, const int hight);
    virtual void Display();
    virtual ~Tree();
    Tree(const Tree& t);
protected:
    int _hight;        // 高度
};
 
class Flower : public Botany
{
public:
    //...實現默認的成員函數
    Flower(const string&, const string&  color);
    virtual void Display();
    virtual ~Flower();
    Flower(const Flower& f);
protected:
    string _colour;    // 顏色
};
 
// 白蘭花，即是樹有時花。
class MicheliaAlba : public Flower, public Tree
{
public:
    MicheliaAlba(const string& name, const string& color, const int hight);
    virtual void Display();
    virtual ~MicheliaAlba();
    MicheliaAlba(const MicheliaAlba& m);
protected:
    // ...
};
 
#include <iostream>//函數文件
#include<string>
#include"plant.h"
 
using namespace std;
 
size_t Botany::_sCount = 0;
 
void Botany::Display()
{
    cout<<"Botany: "<< _name << endl;
    cout << _sCount << endl;
 
}
 
 
Botany::Botany(const string&  name)
    :_name(name)
{
    ++_sCount;
    cout << "Botany" << endl;
}
Tree::Tree(const string&  name, const int hight)
    : Botany(name)
    , _hight(hight)
{
    cout << "Tree" << endl;
}
 
Flower::Flower(const string&  name, const string&  color)
    :Botany(name)
    ,_colour(color)
{
    cout << "Flower" << endl;
}
 
MicheliaAlba::MicheliaAlba(const string&  name, const string&  color, const int hight)
    :Flower(name,color)
    , Tree(name,hight)
{
    cout << "MicheliaAlba" << endl;
}
 
 
void Tree::Display()
{
    cout << "Tree:" << _name << endl;
    cout << _sCount << endl;
}
 
void Flower::Display()
{
    cout << "Flower " << _name << endl;
    cout << _sCount << endl;
 
}
 
void MicheliaAlba::Display()
{
    cout << "MicheliaAlba " << Flower:: _name <<"  "<<Flower::_colour
        <<"  "<<Tree::_hight<< endl;
    cout << _sCount << endl;
 
}
 
 Botany::~Botany()
{
     cout << "~Botany" << endl;
}
 
 Tree:: ~Tree()
 {
     cout << "~Tree" << endl;
 }
 
 Flower:: ~Flower()
 {
     cout << "~Flower" << endl;
 }
 
 MicheliaAlba::~MicheliaAlba()
 {
     cout << "~MicheliaAlba" << endl;
 }
 
 Botany::Botany(const Botany& b)
     :_name(b._name)
 { }
 
 Tree::Tree(const Tree& t)
     : Botany(t._name)
     , _hight(t._hight)
 { }
 
 Flower::Flower(const Flower& f)
     : Botany(f._name)
     , _colour(f._colour)
 { }
 
 MicheliaAlba::MicheliaAlba(const MicheliaAlba& m)
     : Tree(m.Tree::_name,m._hight)
     , Flower(m.Flower::_name,m._colour)
 { }
  
 #include <iostream>//主函數  測試文件
#include<string>
#include"plant.h"
using namespace std;
 
void test()
{
    MicheliaAlba m("白蘭花", "紅色",20);
    m.Display();
    MicheliaAlba m2(m);
    m2.Display();
    m.Display();
}
 
int main()
{
    test();
    return 0;
}