A static member function in C++ accesses an instance of a non static member

Static member functions in C++ access instances of non-static members

Implementation code:

#include <iostream> 
/* 
 Static member functions can only access functions and data other than static data members, static member functions, and classes. They cannot access non-static data members, but static member functions or static data members can be accessed by any function with permission. The reason is: the address of the current object ( this ) is implicitly passed to the function being called. but 1 None of the static member functions this Pointer, so it cannot access non-static member functions.  
*/ 
class a 
{ 
public: 
  static void FunctionA()// Static member functions are not implicit this The independent variables  
  { 
    //menber = 1;//error C2597: For non-static members "a::member" Illegal citation  
    //printValue();//error C2352: " a::printValue " : An illegal call to a non-static member function  
  } 
  void printValue() 
  { 
    printf("menber=%d\n",menber); 
  } 
private: 
  int menber; 
}; 
/* How do I access non-static members?  
1. Changes a non-static member to a static member. Such as :static int member;// It's not going to go wrong, but it's going to go wrong  
2. Take an object as a parameter and access the non-static members of the object by its name  
*/ 
class A 
{ 
public: 
  A():menber(10){} 
  static void FunA(A& _A) 
  { 
     _A.menber = 123; 
     _A.printValue(); 
  } 
  static void FunB(A* _A) 
  { 
    _A->menber = 888; 
    _A->printValue(); 
  } 
  void printValue() 
  { 
    printf("menber=%d\n",menber); 
  } 
private: 
  int menber; 
}; 
int _tmain(int argc, _TCHAR* argv[]) 
{ 
  A* m=new A(); 
  m->FunB(m); 
  A::FunB(m); 
  A::FunA(*m); 
 
  A b;  
  b.FunA(b); 
  A::FunB(&b); 
  b.FunB(&b); 
  m->FunB(&b); 
  return 0; 
} 

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