版权声明: https://blog.csdn.net/dashoumeixi/article/details/82883221
一个例子对父类指针指向子类对象的扩展
class A{
public:
};
class C{
public:
};
class Child : public A , public C{
public:
A& getA(){
return *this; // 也可以(A&)*this;
}
C& getC(){
return *this;
}
};