1、CCZone类：保存了CCObject的指针。
class CC_DLL CCZone
{
public:
CCZone(CCObject *pObject = NULL);
public:
CCObject *m_pCopyObject;
};
CC_DLL的定义为（动态链接库相关）：
#if defined(_USRDLL)
#define CC_DLL __declspec(dllexport)
#else /* use a DLL library */
#define CC_DLL __declspec(dllimport)
#endif2、CCCopying：拷贝CCZone类里的CCObject对象，仅是指针
class CC_DLL CCCopying
{
public:
virtual CCObject* copyWithZone(CCZone* pZone);
};
3、CCObject类：继承自CCCopying类，各成员如下：
class CC_DLL CCObject : public CCCopying
{
public:
unsigned int m_uID; //对象ID，<span style="font-family: Arial,Helvetica,sans-serif;">CCScriptSupport需要公共的ID。</span>
int m_nLuaID; //LUA引用ID。
protected:
unsigned int m_uReference; //引用计数
unsigned int m_uAutoReleaseCount; //自动释放计数
public:
CCObject(void);
virtual ~CCObject(void);
void release(void);
void retain(void);
CCObject* autorelease(void);
CCObject* copy(void);
bool isSingleReference(void) const;
unsigned int retainCount(void) const;
virtual bool isEqual(const CCObject* pObject);
virtual void acceptVisitor(CCDataVisitor &visitor);
virtual void update(float dt) {CC_UNUSED_PARAM(dt);};
friend class CCAutoreleasePool;
};
CCObject定义的成员函数指针：
typedef void (CCObject::*SEL_SCHEDULE)(float); typedef void (CCObject::*SEL_CallFunc)(); typedef void (CCObject::*SEL_CallFuncN)(CCNode*); typedef void (CCObject::*SEL_CallFuncND)(CCNode*,void*); typedef void (CCObject::*SEL_CallFuncO)(CCObject*); typedef void (CCObject::*SEL_MenuHandler)(CCObject*); typedef void (CCObject::*SEL_EventHandler)(CCEvent*); typedef int (CCObject::*SEL_Compare)(CCObject*);CCObject相关的函数宏：
#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)
