继承成本是否与是否在堆栈或堆上分配对象有关?

Consider the following setup.

考虑下面的设置。

class I
{
public:
    virtual void F() = 0;
};

class A : public I
{
public:
    void F() { /* some implementation */ }
};

class B : public I
{
public:
    void F() { /* some implementation */ }
};
clas