diff --git a/ZCppMain/ZMainHead.H b/ZCppMain/ZMainHead.H
index 68143c1..72507af 100644
--- a/ZCppMain/ZMainHead.H
+++ b/ZCppMain/ZMainHead.H
@@ -4698,10 +4698,12 @@ namespace ZNsMain
 
         TypeData* operator->(){return  mp_TypeData;}
         TypeData& operator* (){return *mp_TypeData;}
+        TypeData& operator()(){return *mp_TypeData;}
         operator  TypeData& (){return *mp_TypeData;}
 
         const TypeData* operator->() const{return  mp_TypeData;}
         const TypeData& operator* () const{return *mp_TypeData;}
+        const TypeData& operator()() const{return *mp_TypeData;}
         operator  const TypeData& () const{return *mp_TypeData;}
 
         ZtCObjOpt& operator=(const ZtCObjOpt& rhs)
diff --git a/ZCppMainTest/ZtCLinkList_000.cpp b/ZCppMainTest/ZtCLinkList_000.cpp
index 07cd180..9aed45a 100644
--- a/ZCppMainTest/ZtCLinkList_000.cpp
+++ b/ZCppMainTest/ZtCLinkList_000.cpp
@@ -74,7 +74,11 @@ namespace ZNsMain
                 cout<<"# VO_StrLinkOpt.GetObjOpt(1) : bool     ()="<<bool(VO_StrLinkOpt)      <<endl;
 
                 if(VO_StrLinkOpt.has_value())
-                    cout<<"# value by VO_StrLinkOpt : "<<VO_StrLinkOpt.value()<<endl;
+                {
+                    cout<<"# value by VO_StrLinkOpt   : "<<VO_StrLinkOpt.value()<<endl;
+                    cout<<"# value by VO_StrLinkOpt() : "<<VO_StrLinkOpt()      <<endl;
+                }/*
+                if(VO_StrLinkOpt.has_value())*/
 
                 VO_StrLinkOpt = VO_ZCLinkStrLis1.GetTailOpt();
 
diff --git a/ZCppMainTest/ZtCLinkList_001.cpp b/ZCppMainTest/ZtCLinkList_001.cpp
index caa8cd5..d01742a 100644
--- a/ZCppMainTest/ZtCLinkList_001.cpp
+++ b/ZCppMainTest/ZtCLinkList_001.cpp
@@ -130,7 +130,11 @@ namespace ZNsMain
                 cout<<"# VO_StrLinkOpt.GetObjOpt(1) : bool     ()="<<bool(VO_StrLinkOpt)      <<endl;
 
                 if(VO_StrLinkOpt.has_value())
-                    cout<<"# value by VO_StrLinkOpt : "<<VO_StrLinkOpt.value()().GetData()<<endl;
+                {
+                    cout<<"# value by VO_StrLinkOpt   : "<<VO_StrLinkOpt.value()().GetData()<<endl;
+                    cout<<"# value by VO_StrLinkOpt() : "<<VO_StrLinkOpt()      ().GetData()<<endl;
+                }/*
+                if(VO_StrLinkOpt.has_value())*/
 
                 VO_StrLinkOpt = VO_ZCLinkStrLis1.GetTailOpt();
 
@@ -138,7 +142,11 @@ namespace ZNsMain
                 cout<<"# VO_StrLinkOpt.GetTailOpt() : bool     ()="<<bool(VO_StrLinkOpt)      <<endl;
 
                 if(VO_StrLinkOpt.has_value())
-                    cout<<"# value by VO_StrLinkOpt : "<<VO_StrLinkOpt.value()().GetData()<<endl;
+                {
+                    cout<<"# value by VO_StrLinkOpt   : "<<VO_StrLinkOpt.value()().GetData()<<endl;
+                    cout<<"# value by VO_StrLinkOpt() : "<<VO_StrLinkOpt()      ().GetData()<<endl;
+                }/*
+                if(VO_StrLinkOpt.has_value())*/
 
 
                 cout<<"+++++++++++++++++++++++++++++++++++++++++++++++"<<endl;