diff --git a/ZCppMain/ZMainHead.H b/ZCppMain/ZMainHead.H
index c3809c1..989545e 100644
--- a/ZCppMain/ZMainHead.H
+++ b/ZCppMain/ZMainHead.H
@@ -3591,6 +3591,198 @@ namespace ZNsMain
 
     ■  class ZtCObjtChain<>
 
+        각 객체에 어떻게 쉽게 접근하는지가 관건이다. -- 2025-10-18 01:41
+
+    ///////////////////////////////////////////////////////////////////*/
+
+    template /*########################################################*/
+        <
+            typename TTypeNow, typename TTypeNextChain
+        >
+    class ZtCObjtChain : public TTypeNextChain //////////////////////////
+    {
+    public :
+        typedef TTypeNow            TypeData      ;
+        typedef ZtCObjtChain        TypeChainNow  ;
+        typedef TTypeNextChain      TypeChainNext ;
+    /************************************************************/
+        typedef const TypeChainNow  TypeChainNowC ;
+        typedef const TypeChainNext TypeChainNextC;
+    /************************************************************/
+        typedef const TypeData      TypeDataC     ;
+    /************************************************************/
+        typedef typename TypeChainNext::TypeData TypeNext  ;
+    /************************************************************/
+        enum{ZETypeNo   = TypeChainNext::ZETypeNo+1};
+        enum{ZEBoolNext = 1                        };
+    public :
+        static ZTypIntE Size (){return ZETypeNo;}
+        static ZTypIntE size (){return ZETypeNo;}
+        static ZTypIntE GetNo(){return ZETypeNo;}
+    private:
+        TypeData mo_TypeVar;
+    public :
+        ZtCObjtChain(){}
+    public :
+        TypeData & GetData()      {return mo_TypeVar;}
+        TypeDataC& GetData() const{return mo_TypeVar;}
+    /************************************************************/
+        TypeChainNext & GetChainNext()
+            { return static_cast<TypeChainNext&>(*this); }
+        TypeChainNextC& GetChainNext() const
+            { return static_cast<TypeChainNext&>(*this); }
+    /************************************************************/
+
+        template<typename TViewChain> void IterHead(TViewChain AO_CView)
+        {
+            ZtCTypeData<TViewChain>::
+                GetObjRef(AO_CView).OnMeetData(*this);
+
+            if(TypeChainNow::ZEBoolNext>0)
+            {
+                static_cast<TypeChainNext&>(*this).IterHead(AO_CView);
+            }/*
+            if(TypeChainNow::ZEBoolNext>0)*/
+        }/*
+        template<typename TViewChain> void IterHead(TViewChain AO_CView)*/
+        template<typename TViewChain> void IterTail(TViewChain AO_CView)
+        {
+            if(TypeChainNow::ZEBoolNext>0)
+            {
+                static_cast<TypeChainNext&>(*this).IterTail(AO_CView);
+            }/*
+            if(TypeChainNow::ZEBoolNext>0)*/
+
+            ZtCTypeData<TViewChain>::
+                GetObjRef(AO_CView).OnMeetData(*this);
+        }/*
+        template<typename TViewChain> void IterTail(TViewChain AO_CView)*/
+
+
+        template<typename TViewChain, typename TTypeHelp>
+            void IterHead(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        {
+            typedef ZNsMain::ZtCCheckRef<TTypeHelp> ZCCheckRef;
+
+            ZtCTypeData<TViewChain>::GetObjRef(AO_CView).
+                OnMeetData(*this, ZCCheckRef::PassData(AO_TypeHelp));
+
+            if(TypeChainNow::ZEBoolNext>0)
+            {
+                static_cast<TypeChainNext&>(*this).
+                    IterHead( AO_CView, AO_TypeHelp ) ;
+            }/*
+            if(TypeChainNow::ZEBoolNext>0)*/
+        }/*
+        template<typename TViewChain, typename TTypeHelp>
+            void IterHead(TViewChain AO_CView, TTypeHelp AO_TypeHelp)*/
+        template<typename TViewChain, typename TTypeHelp>
+            void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        {
+            if(TypeChainNow::ZEBoolNext>0)
+            {
+                static_cast<TypeChainNext&>(*this).
+                    IterTail( AO_CView, AO_TypeHelp ) ;
+            }/*
+            if(TypeChainNow::ZEBoolNext>0)*/
+
+            typedef ZNsMain::ZtCCheckRef<TTypeHelp> ZCCheckRef;
+
+            ZtCTypeData<TViewChain>::GetObjRef(AO_CView).
+                OnMeetData(*this, ZCCheckRef::PassData(AO_TypeHelp));
+        }/*
+        template<typename TViewChain, typename TTypeHelp>
+            void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        */
+    public:
+    };/*
+    template /*##########################################################
+        <
+            typename TTypeNow, typename TTypeNextChain
+        >
+    class ZtCObjtChain : public TTypeNextChain ////////////////////////*/
+
+
+    template /*########################################################*/
+        < typename TTypeNow >
+    class ZtCObjtChain<TTypeNow, ZCEmpty> ///////////////////////////////
+    {
+    public :
+        typedef ZtCObjtChain<TTypeNow, ZCEmpty> ZCObjtChain;
+    public :
+        typedef TTypeNow           TypeData      ;
+        typedef ZCObjtChain        TypeChainNow  ;
+        typedef ZCObjtChain        TypeChainNext ;
+    /************************************************************/
+        typedef ZCEmpty            TypeNext      ;
+    /************************************************************/
+        typedef const TypeData     TypeDataC     ;
+    /************************************************************/
+        typedef const TypeChainNow TypeChainNowC ;
+        typedef const TypeChainNow TypeChainNextC;
+    /************************************************************/
+        enum{ZETypeNo   = 1 };
+        enum{ZEBoolNext = 0 };
+    public :
+        static ZTypIntE Size (){return ZETypeNo;}
+        static ZTypIntE size (){return ZETypeNo;}
+        static ZTypIntE GetNo(){return ZETypeNo;}
+    private:
+        TypeData mo_TypeVar;
+    public :
+        ZtCObjtChain(){}
+    public :
+        TypeData & GetData()      {return mo_TypeVar;}
+        TypeDataC& GetData() const{return mo_TypeVar;}
+    /************************************************************/
+        TypeChainNext & GetChainNext()      { return (*this); }
+        TypeChainNextC& GetChainNext() const{ return (*this); }
+    /************************************************************/
+
+        template<typename TViewChain> void IterHead(TViewChain AO_CView)
+        {
+            ZtCTypeData<TViewChain>::
+                GetObjRef(AO_CView).OnMeetData(*this);
+        }/*
+        template<typename TViewChain> void IterHead(TViewChain AO_CView)*/
+        template<typename TViewChain> void IterTail(TViewChain AO_CView)
+        {
+            ZtCTypeData<TViewChain>::
+                GetObjRef(AO_CView).OnMeetData(*this);
+        }/*
+        template<typename TViewChain> void IterTail(TViewChain AO_CView)*/
+
+        template<typename TViewChain, typename TTypeHelp>
+            void IterHead(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        {
+            typedef ZNsMain::ZtCCheckRef<TTypeHelp> ZCCheckRef;
+
+            ZtCTypeData<TViewChain>::GetObjRef(AO_CView).
+                OnMeetData(*this, ZCCheckRef::PassData(AO_TypeHelp));
+        }
+        template<typename TViewChain, typename TTypeHelp>
+            void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        {
+            typedef ZNsMain::ZtCCheckRef<TTypeHelp> ZCCheckRef;
+
+            ZtCTypeData<TViewChain>::GetObjRef(AO_CView).
+                OnMeetData(*this, ZCCheckRef::PassData(AO_TypeHelp));
+        }/*
+        template<typename TViewChain, typename TTypeHelp>
+            void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
+        */
+    public:
+    };/*
+    template /*##########################################################
+        < typename TTypeNow >
+    class ZtCObjtChain<TTypeNow, ZCEmpty> /////////////////////////////*/
+
+
+
+    /*///////////////////////////////////////////////////////////////////
+
+    ■  class ZtCObjtChainEx<>
+
         자료형 TTypeNow 에 대하여, 기본값 TTypeVar 으로 자동 초기화하려는
         목적으로 만들었으나, 기본 자료형 즉 int, long, char 에 대해서만 동
         작하고 class 에서는 동작하지 않는다. 리눅스에서는 double 형에 대해
@@ -3602,11 +3794,11 @@ namespace ZNsMain
         <
             typename TTypeNow, TTypeNow TTypeVar, typename TTypeNextChain
         >
-    class ZtCObjtChain : public TTypeNextChain //////////////////////////
+    class ZtCObjtChainEx : public TTypeNextChain ////////////////////////
     {
     public :
         typedef TTypeNow        TypeData      ;
-        typedef ZtCObjtChain    TypeChainNow  ;
+        typedef ZtCObjtChainEx  TypeChainNow  ;
         typedef TTypeNextChain  TypeChainNext ;
     /************************************************************/
         typedef typename TypeChainNext::TypeData TypeNext  ;
@@ -3622,7 +3814,7 @@ namespace ZNsMain
     private:
         TypeData mo_TypeVar;
     public :
-        ZtCObjtChain() : mo_TypeVar(TTypeVar){}
+        ZtCObjtChainEx() : mo_TypeVar(TTypeVar){}
     public :
         TypeData & GetData()      {return mo_TypeVar;}
         TypeDataC& GetData() const{return mo_TypeVar;}
@@ -3689,24 +3881,23 @@ namespace ZNsMain
         template<typename TViewChain, typename TTypeHelp>
             void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
         */
-
     public:
     };/*
     template /*##########################################################
         <
             typename TTypeNow, TTypeNow TTypeVar, typename TTypeNextChain
         >
-    class ZtCObjtChain : public TTypeNextChain ////////////////////////*/
+    class ZtCObjtChainEx : public TTypeNextChain //////////////////////*/
 
 
     template /*########################################################*/
         <
             typename TTypeNow, TTypeNow TTypeVar
         >
-    class ZtCObjtChain<TTypeNow, TTypeVar, ZCEmpty> /////////////////////
+    class ZtCObjtChainEx<TTypeNow, TTypeVar, ZCEmpty> ///////////////////
     {
     public :
-        typedef ZtCObjtChain<TTypeNow, TTypeVar, ZCEmpty> ZCObjtChain;
+        typedef ZtCObjtChainEx<TTypeNow, TTypeVar, ZCEmpty> ZCObjtChain;
     public :
         typedef TTypeNow        TypeData      ;
         typedef ZCObjtChain     TypeChainNow  ;
@@ -3725,7 +3916,7 @@ namespace ZNsMain
     private:
         TypeData mo_TypeVar;
     public :
-        ZtCObjtChain() : mo_TypeVar(TTypeVar){}
+        ZtCObjtChainEx() : mo_TypeVar(TTypeVar){}
     public :
         TypeData & GetData()      {return mo_TypeVar;}
         TypeDataC& GetData() const{return mo_TypeVar;}
@@ -3763,15 +3954,13 @@ namespace ZNsMain
         template<typename TViewChain, typename TTypeHelp>
             void IterTail(TViewChain AO_CView, TTypeHelp AO_TypeHelp)
         */
-
-
     public:
     };/*
     template /*##########################################################
         <
             typename TTypeNow, TTypeNow TTypeVar
         >
-    class ZtCObjtChain<TTypeNow, TTypeVar, ZCEmpty> ///////////////////*/
+    class ZtCObjtChainEx<TTypeNow, TTypeVar, ZCEmpty> /////////////////*/
 
 
 
diff --git a/ZCppMainTest/c++_test_006.cpp b/ZCppMainTest/c++_test_006.cpp
index 3cbe10f..feedc9f 100644
--- a/ZCppMainTest/c++_test_006.cpp
+++ b/ZCppMainTest/c++_test_006.cpp
@@ -108,17 +108,17 @@ namespace ZNsMain
             cout<<myintvar2.MO_TypeVar<<endl;
 
 
-            typedef ZtCObjtChain
+            typedef ZtCObjtChainEx
             <
-                char  , 'a'           , ZtCObjtChain<
-              //double, 10.2          , ZtCObjtChain< // error in linux
-              //string, string("123") , ZtCObjtChain< // error
-                long  , 10            , ZtCObjtChain<
+                char  , 'a'           , ZtCObjtChainEx<
+              //double, 10.2          , ZtCObjtChainEx< // error in linux
+              //string, string("123") , ZtCObjtChainEx< // error
+                long  , 10            , ZtCObjtChainEx<
                 int   , 19            ,
                 ZCEmpty > >
-            > ZtCObjtChain;    ZCTypeView VO_ZCTypeView;
+            > ZtCObjtChainEx;    ZCTypeView VO_ZCTypeView;
 
-            ZtCObjtChain VO_ZtCObjtChain;  int VI_CallNo = 0;
+            ZtCObjtChainEx VO_ZtCObjtChain;  int VI_CallNo = 0;
 
             cout<<"# VO_ZtCObjtChain.size()="<<VO_ZtCObjtChain.size()<<endl;
 
@@ -147,10 +147,11 @@ namespace ZNsMain
 
             ZftIterTypeChainTail<ZCTypeChain, ZCTypeView&>(VO_ZCTypeView);
 
-            cout<<"************************************"<<endl;
+            cout<<"@** call start : ZCTypeView(rhs) **********@"<<endl;
             ZCTypeChain::ZtCIterChain<ZCTypeView>::IterHead(VO_ZCTypeView);
-            cout<<"************************************"<<endl;
+            cout<<"@******************************************@"<<endl;
             ZCTypeChain::ZtCIterChain<ZCTypeView>::IterTail(VO_ZCTypeView);
+            cout<<"@*** call close : ZCTypeView(rhs) *********@"<<endl;
 
             ZftIterTypeChainHead<ZCTypeChain, ZCTypeView&, int&>
                 ( VO_ZCTypeView, (VI_CallNo = 0) );
@@ -159,10 +160,10 @@ namespace ZNsMain
                 ( VO_ZCTypeView, (VI_CallNo = 0) );
 
             cout<<"************************************"<<endl;
-            ZCTypeChain::ZtCIterChain<ZCTypeView>::
+            ZCTypeChain::ZtCIterChain<ZCTypeView&>::
                 IterHead(VO_ZCTypeView, ZftMCP(VI_CallNo=0));
             cout<<"************************************"<<endl;
-            ZCTypeChain::ZtCIterChain<ZCTypeView>::
+            ZCTypeChain::ZtCIterChain<ZCTypeView&>::
                 IterTail(VO_ZCTypeView, ZftMCP(VI_CallNo=0));