diff --git a/inc/hgl/SourceCodeLocation.h b/inc/hgl/SourceCodeLocation.h
index 58d0964..d42b0a4 100644
--- a/inc/hgl/SourceCodeLocation.h
+++ b/inc/hgl/SourceCodeLocation.h
@@ -10,5 +10,4 @@ namespace hgl
     };
 
     #define HGL_SOURCE_CODE_LOCATION    __FILE__,__FUNCTION__,__LINE__
-
 }//namespace hgl
diff --git a/inc/hgl/type/Map.h b/inc/hgl/type/Map.h
index e1b2d4d..8a3b826 100644
--- a/inc/hgl/type/Map.h
+++ b/inc/hgl/type/Map.h
@@ -144,6 +144,10 @@ namespace hgl
 
     template<typename K,typename V> class Map:public MapTemplate<K,V,KeyValue<K,V> >
     {
+    public:
+
+        using Iterator=KeyValue<K,V>;
+
     public:
 
         Map()=default;
diff --git a/inc/hgl/type/object/Object.h b/inc/hgl/type/object/Object.h
index 45efdc2..4092557 100644
--- a/inc/hgl/type/object/Object.h
+++ b/inc/hgl/type/object/Object.h
@@ -1,6 +1,7 @@
 #pragma once
 #include<hgl/type/DataType.h>
 #include<hgl/type/object/ObjectBaseInfo.h>
+#include<hgl/type/object/ObjectRelation.h>
 
 namespace hgl
 {
@@ -33,10 +34,6 @@ namespace hgl
         virtual ~Object()=default;
     
         virtual void Deinitailize()=0;
-
-        virtual bool CheckType()
-        {
-        }
     };//class Object
 
     template<typename T> class DefaultObjectManager;