C ++ inheritance operations --- base class pointer access to derived classes --- restoration of access attributes for base class members

C ++ inheritance operations --- base class pointer access to derived classes --- restoration of access attributes for base class members

# Include "stdafx. h" # include

 
  
# Include using namespace std; class Base {public: int num; virtual void func () {cout <"Do something in Base" <

  
   
Func ();} int main () {// Base * pb = new Derived (10); // after using the inherited attributes of private and protected, you cannot assign a value like this // because the Base is already a private part in Derived and cannot be accessed here // The conversion cannot be completed getBasePtr (); system ("pause "); return 0 ;}