10.12.cpp

这是C++的一部分练习程序!对初学者有一定的帮助作用。

#include <iostream.h>
class A
{
  public:
	  A(int i)
	  {  a=i;  }
      int a;
};
class B1:public A
{
  public:
	  B1(int i,int j):A(i)
	  {  b1=j;  }
  private:
	  int b1;
};
class B2:public A
{
  public:
	  B2(int i,int j):A(i)
	  {  b2=j;  }
  private:
	  int b2;
};
class D:public B1,public B2
{
  public:
	  D(int i,int j,int k):B1(i,j),B2(i,j),d(k)
	  {  }
	  void f()
	  {  cout<<B1::a+B2::a<<endl;  }
  private:
	  int d;
};
void main()
{
	D d(11,12,13);
	cout<<d.B1::a<<endl;
	d.f();
}