#include 
/* run this program using the console pauser or add your own getch, system("pause") or input loop */
class A 
{
  private:
  float fa;
  public:
  A(float a = 0) 
  {
    fa = a;
  }
  float getdata() 
  {
    return fa;
  }
};
class B 
{
  private:
  float fb;
  public:
  B(float b = 0) 
  {
    fb = b;
  }
  float getdata() 
  {
    return fb;
  }
};
class C:public A,public B 
{
  public:
  C(int a=0,int b=0):A(a),B(b) 
  {
  }
  int sum() 
  {
    return A::getdata()+B::getdata();
  }
};
int main(int argc, char** argv) 
{
  class C c1(12,23);
  class A *a1;
  a1 = &c1;//指向派生类的基类指针
  //std::cout << c1.getdata() << std::endl; 此时有二义性的问题
  std::cout << a1->getdata() << std::endl;
  std::cout << c1.B::getdata() << std::endl;
  std::cout << c1.A::getdata() << std::endl;
  return 0;
}