C++ 继承 指向成员的函数指针问题

[CC2530]

class base_item
{
public:
  void (base_item::*Handler)(void);
  void AssignHandler(void (base_item::*handler)(void))
  {
    Handler=handler;
  }
};

class derived_item:public base_item
{
public:
  void func1(void)
  {   
  };
  
  void func2(void)
  {  
    this->Handler=func1;
    (this->*Handler)();   
  }
  
   void func3(void)
  {  
    this->AssignHandler(func1);
    (this->*Handler)();   
  } 
};

编译不通，怎么解决？

[qq120848369]

void (base_item::*Handler)(void);


这是base_iterm的函数指针,你用的是派生类的函数指针..

[qq120848369]

#include <iostream>
using namespace std;

class base_item
{
public:
  void (base_item::*Handler)(void);
  void AssignHandler(void (base_item::*handler)(void))
  {
    Handler=handler;
  }
      void func1(void)
  {
  }

};

class derived_item:public base_item
{
public:


  void func2(void)
  {
	  this->Handler=&base_item::func1;
    (this->*Handler)();
  }

   void func3(void)
  {
    this->AssignHandler(&base_item::func1);
    (this->*Handler)();
  }
};

int main()
{
	derived_item a;
	a.func2();
	a.func3();
	return 0;
}

这样可以糊弄通过.