C#编程

开发平台：

Visual C++

ch17_2.cpp：源码内容

							//**********************
//**    ch17_2.cpp    **
//**********************
#include<iostream.h>
class Furniture{
public:
  Furniture(){}
  void SetWeight(int i){ weight =i; }
  int GetWeight(){ return weight; }
protected:
  int weight;
};
class Bed :public Furniture{
public:
  Bed(){}
  void Sleep(){ cout <<"Sleeping...n"; }
};
class Sofa :public Furniture{
public:
  Sofa(){}
  void WatchTV(){ cout <<"Watching TV.n"; }
};
class SleeperSofa :public Bed, public Sofa{
public:
  SleeperSofa() :Sofa(), Bed(){}
  void FoldOut(){ cout <<"Fold out the sofa.n"; }
};
void main()
{
  SleeperSofa ss;
  ss.SetWeight(20);        //编译出错！模糊的SetWeight成员
  Furniture* pF;
  pF =(Furniture*)&ss;     //编译出错！模糊的Furniture*
  cout <<pF->GetWeight() <<endl;
}

						