hybclass.h

适合初学者学习以及程序员回顾

// HybClass.h

#ifndef HYBCLASS_H
#define HYBCLASS_H
#include <iostream>
using std::cin;
using std::cout;
using std::endl;
using std::cerr;

//---- 宣告类别 Component --------
class Component
{
  private:
    int i;
  public:
    Component ():  i(1)
       {cout << "呼叫 Component 预设建构函数"
             << endl; }
    Component (int N) : i(N)
       {cout << "呼叫 Component 建构函数"
             << endl; }
    ~Component()
       {cout << "呼叫 Component 解构函数"
             << endl;}
    int Get() const   {return i;}
    void Double()     {i*=2;}
};

//---- 宣告类别 Base --------
class Base
{
  private:
    int j;
  public:
    Base(): j(3)
       {cout << "呼叫 Base 预设建构函数"
             << endl; }
    Base(int N): j(N)
       {cout << "呼叫 Base 建构函数"
             << endl; }
    ~Base()
       {cout << "呼叫 Base 解构函数"
             << endl;}
    void Set(int N)  {j=N;}
    int  Get() const {return j;}
    void Double()    {j*=2;}
    void Triple()    {j*=3;}
};

//---- 宣告类别 Hybrid --------
class Hybrid : public Base
{
  private:
    int k;
    Component C1, C2;
  public:
    Hybrid() : k(1), C1(3), C2(4), Base(2)
         {cout << "呼叫 Hybrid 预设建构函数"
               << endl; }
    Hybrid(int L, int M, int N, int P)
             : k(L), Base(M), C1(N), C2(P)
         {cout << "呼叫 Hybrid 建构函数"
               << endl; }
    ~Hybrid()
         {cout << "呼叫 Hybrid 解构函数"
               << endl;}
    int Get() const   {return k;}
    void Double()     {k*=2;}
    void DoubleBase() {Base::Double();}
    void DoubleComp() {C1.Double(); C2.Double();}
    int GetBase()     {return Base::Get();}
    int GetC1()       {return C1.Get();}
    int GetC2()       {return C2.Get();}
};
#endif