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 intm_uID;//对象ID，，<span style="font-family: Arial, Helvetica, sans-serif;">CCScriptSupport需要公共的ID。</span>intm_nLuaID;//LUA引用ID。protected:unsigned intm_uReference;//引用计数unsigned intm_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)
有山就有路，有河就能渡。
