问题描述：

1、类A

class A: public CCLayer,public CSpriteParamData
{
 
public:
    CMD_GR_ConfigServer         m_ConfigServer;
    
public:
    CTableInterface();
    virtual ~CTableInterface();
 
    
public:
    virtual void ccInterfaceWithRule();
 
};

class B
{
public:
    CRoomInterface(){}
    virtual ~CRoomInterface(){}
 
	//用户聊天
	virtual bool OnUserChat(void* pData,WORD wSize) {return true;}
	//用户表情
	virtual bool OnUserImage(void* pData,WORD wSize) {return true;}
 
	virtual void ccInterfaceWithUserStatus(void *pData )=0;
};

class C:public B,public A
{
public:
	~CRoomLayer(void);
	private:
	CCLayer*					_scrollLayer;
void menuFuncs(CCObject* obj);
}

类C依次继承了B和A,在C中的menuFuncs方法体中访问_scrollLayer时，_scrollLayer指针有问题，出现内存错误问题。

这么写继承关系，编译运行都没问题，但是只要是设计到调用xx_selector方法时，其方法体中访问_scrollLayer时，都会出现内存问题。

如以下方法：

#define schedule_selector(_SELECTOR) (SEL_SCHEDULE)(&_SELECTOR)
#define callfunc_selector(_SELECTOR) (SEL_CallFunc)(&_SELECTOR)
#define callfuncN_selector(_SELECTOR) (SEL_CallFuncN)(&_SELECTOR)
#define callfuncND_selector(_SELECTOR) (SEL_CallFuncND)(&_SELECTOR)
#define callfuncO_selector(_SELECTOR) (SEL_CallFuncO)(&_SELECTOR)
#define menu_selector(_SELECTOR) (SEL_MenuHandler)(&_SELECTOR)
#define event_selector(_SELECTOR) (SEL_EventHandler)(&_SELECTOR)
#define compare_selector(_SELECTOR) (SEL_Compare)(&_SELECTOR)

解决方法就是改变继承关系：

class C:public A,public B