diff --git a/TinySTL/TinySTL.vcxproj b/TinySTL/TinySTL.vcxproj
index 0a45209..d5e4188 100644
--- a/TinySTL/TinySTL.vcxproj
+++ b/TinySTL/TinySTL.vcxproj
@@ -78,6 +78,9 @@
   <ItemGroup>
     <ClCompile Include="main.cpp" />
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="TypeTraits.h" />
+  </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
diff --git a/TinySTL/TinySTL.vcxproj.filters b/TinySTL/TinySTL.vcxproj.filters
index 333f5a9..cf09af5 100644
--- a/TinySTL/TinySTL.vcxproj.filters
+++ b/TinySTL/TinySTL.vcxproj.filters
@@ -19,4 +19,9 @@
       <Filter>源文件</Filter>
     </ClCompile>
   </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="TypeTraits.h">
+      <Filter>头文件</Filter>
+    </ClInclude>
+  </ItemGroup>
 </Project>
\ No newline at end of file
diff --git a/TinySTL/TypeTraits.h b/TinySTL/TypeTraits.h
index 342f59a..701ab79 100644
--- a/TinySTL/TypeTraits.h
+++ b/TinySTL/TypeTraits.h
@@ -2,241 +2,240 @@
 #define _TYPE_TRAITS_H_
 
 namespace TinySTL{
-	namespace zstd
+
+	struct _true_type { };
+	struct _false_type { };
+
+	/*
+	** ��ȡ�����T���͵���������
+	*/
+	template<class T>
+	struct _type_traits
 	{
-		struct _true_type { };
-		struct _false_type { };
+		typedef _false_type		has_trivial_default_constructor;
+		typedef _false_type		has_trivial_copy_constructor;
+		typedef _false_type		has_trivial_assignment_operator;
+		typedef _false_type		has_trivial_destructor;
+		typedef _false_type		is_POD_type;
+	};
 
-		/*
-		** ��ȡ�����T���͵���������
-		*/
-		template<class T>
-		struct _type_traits
-		{
-			typedef _false_type		has_trivial_default_constructor;
-			typedef _false_type		has_trivial_copy_constructor;
-			typedef _false_type		has_trivial_assignment_operator;
-			typedef _false_type		has_trivial_destructor;
-			typedef _false_type		is_POD_type;
-		};
+	template<>
+	struct _type_traits<bool>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<char>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned char>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<signed char>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<wchar_t>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<short>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned short>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<int>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned int>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<long>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned long>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<long long>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned long long>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<float>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<double>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<long double>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
 
-		template<>
-		struct _type_traits<bool>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<char>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned char>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<signed char>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<wchar_t>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<short>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned short>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<int>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned int>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<long>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned long>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<long long>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned long long>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<float>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<double>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<long double>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-
-		template<class T>
-		struct _type_traits<T*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<class T>
-		struct _type_traits<const T*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<unsigned char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<signed char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<const char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<const unsigned char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
-		template<>
-		struct _type_traits<const signed char*>
-		{
-			typedef _true_type		has_trivial_default_constructor;
-			typedef _true_type		has_trivial_copy_constructor;
-			typedef _true_type		has_trivial_assignment_operator;
-			typedef _true_type		has_trivial_destructor;
-			typedef _true_type		is_POD_type;
-		};
+	template<class T>
+	struct _type_traits<T*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<class T>
+	struct _type_traits<const T*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<unsigned char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<signed char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<const char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<const unsigned char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
+	template<>
+	struct _type_traits<const signed char*>
+	{
+		typedef _true_type		has_trivial_default_constructor;
+		typedef _true_type		has_trivial_copy_constructor;
+		typedef _true_type		has_trivial_assignment_operator;
+		typedef _true_type		has_trivial_destructor;
+		typedef _true_type		is_POD_type;
+	};
 }
 
 #endif
\ No newline at end of file