f1008.cpp

《C++程序设计教程（第二版）》源代码 源代码中包括运行所需的数据文件,它的格式是*.txt,还有*.in和*.out的。头文件格式是*.h

//=====================================
// f1007.cpp
// virtual inheritance
//=====================================
#include<iostream>
using namespace std;
//-------------------------------------
class Furniture{
protected:
  int weight;
public:
  Furniture(){}
  void setWeight(int i){ weight =i; }
  int getWeight()const{ return weight; }
};//-----------------------------------
class Bed : virtual public Furniture{
public:
  Bed(){}
  void sleep()const{ cout <<"Sleeping...\n"; }
};//-----------------------------------
class Sofa : virtual public Furniture{
public:
  Sofa(){}
  void watchTV()const{ cout <<"Watching TV.\n"; }
};//-----------------------------------
class SleeperSofa : public Bed, public Sofa{
public:
  SleeperSofa() :Sofa(), Bed(){}
  void foldOut()const{ cout <<"Fold out the sofa.\n"; }
};//-----------------------------------
int main(){
  SleeperSofa ss;
  ss.setWeight(20);
  cout<<ss.getWeight()<<endl;
}//====================================