diff --git a/src/KeyWordExt.cpp b/src/KeyWordExt.cpp
index ea512c8..548ccd2 100644
--- a/src/KeyWordExt.cpp
+++ b/src/KeyWordExt.cpp
@@ -24,8 +24,7 @@ namespace CppJieba
 			LogError(string_format("cann't find file[%s].",filePath));
 			return false;
 		}
-		bool retFlag = _segment.init(filePath);
-		LogInfo(string_format("init(%s) end", filePath));
+		bool retFlag = _segment.init();
 		return retFlag;
 
 	}
diff --git a/src/Segment.cpp b/src/Segment.cpp
index eb86d97..e2344dc 100644
--- a/src/Segment.cpp
+++ b/src/Segment.cpp
@@ -18,14 +18,22 @@ namespace CppJieba
 	{
 	}
 
-	bool Segment::init(const string& dictFilePath)
+	bool Segment::init()
 	{
 		bool retFlag;
-		LogInfo(string_format("_trie.init(%s) start...", dictFilePath));
-		retFlag = _trie.init(dictFilePath);
-		LogInfo("_trie.init end.");
+		retFlag = _trie.init();
 		return retFlag;
 	}
+	
+	bool Segment::loadSegDict(const string& filePath)
+	{
+		bool retFlag;
+		retFlag = _trie.loadDict(filePath);
+		LogInfo(string_format("_trie.loadDict(%s) start...", filePath.c_str()));
+		LogInfo("_trie.loadDict end.");
+		return retFlag;
+	}
+
 
 	bool Segment::destroy()
 	{
@@ -36,7 +44,7 @@ namespace CppJieba
 	{
 		bool retFlag;
 		res.clear();
-		string uniStr = _utf8ToUni(str;
+		string uniStr = _utf8ToUni(str);
 		if(uniStr.empty())
 		{
 			LogError("_utf8ToUni failed.");
@@ -103,7 +111,7 @@ namespace CppJieba
 			vec.push_back(i/2);
 			for(uint j = i + 4; j <= uniStr.size(); j+=2)
 			{
-				cout<<uniStr.substr(i, j - i)<<endl;
+				//cout<<uniStr.substr(i, j - i)<<endl;
 				if(NULL != _trie.find(uniStr.substr(i, j - i)))
 				{
 					vec.push_back((j - 2)/2);
@@ -193,11 +201,13 @@ using namespace CppJieba;
 int main()
 {
 	Segment segment;
-	if(!segment.init("../dicts/segdict.utf8.v2.1"))
+	segment.init();
+	if(!segment.loadSegDict("../dicts/segdict.utf8.v2.1"))
 	{
 		cerr<<"1"<<endl;
 		return 1;
 	}
+	getchar();
 	//segment.init("dicts/jieba.dict.utf8");
 	
 	vector<string> res;
diff --git a/src/Segment.h b/src/Segment.h
index bab0254..ee9d4ae 100644
--- a/src/Segment.h
+++ b/src/Segment.h
@@ -22,7 +22,8 @@ namespace CppJieba
 			Segment();
 			~Segment();
 		public:
-			bool init(const string& dictFilePath);
+			bool init();
+			bool loadSegDict(const string& filePath);
 			bool destroy();
 		public:
 			bool cutDAG(const string& chStr, vector<string>& res);
diff --git a/src/Trie.cpp b/src/Trie.cpp
index d5bf04a..6b4af3e 100644
--- a/src/Trie.cpp
+++ b/src/Trie.cpp
@@ -30,6 +30,7 @@ namespace CppJieba
 		_root = NULL;
 		_totalCount = 0;
 		_minWeight = numeric_limits<double>::max();
+		_initFlag = false;
     }
     
     Trie::~Trie()
@@ -48,8 +49,47 @@ namespace CppJieba
 		return true;
 	}
 
-	bool Trie::init(const string& filePath)
+	bool Trie::_getInitFlag()
 	{
+		return _initFlag;
+	}
+	void Trie::_setInitFlag()
+	{
+		_initFlag = true;
+	}
+
+	bool Trie::init()
+	{
+        if(_getInitFlag())
+        {
+            LogError("already initted!");
+            return false;
+        }
+
+		try
+		{
+			_root = new TrieNode;
+		}
+		catch(const bad_alloc& e)
+		{
+			return false;
+		}
+		if(NULL == _root)
+		{
+			return false;
+		}
+		_setInitFlag();
+		return true;
+	}
+
+	bool Trie::loadDict(const string& filePath)
+	{
+		if(!_getInitFlag())
+		{
+			LogError("not initted.");
+			return false;
+		}
+
 		if(!checkFileExist(filePath.c_str()))
 		{
 			LogError(string_format("cann't find fiel[%s].",filePath.c_str()));
@@ -70,15 +110,9 @@ namespace CppJieba
 		}
 		return true;
 	}
-    
+
     bool Trie::_buildTree(const string& filePath)
     {
-        if(NULL != _root)
-        {
-            LogError("already initted!");
-            return false;
-        }
-        _root = new TrieNode;
 		
         ifstream ifile(filePath.c_str());
         string line;
@@ -247,21 +281,6 @@ namespace CppJieba
 		return NULL;
 	}
 
-	/*
-	double Trie::getWeight(const ChUnicode* uniStr, size_t len)
-	{
-		const TrieNodeInfo* p = find(uniStr, len);
-		if(NULL != p)
-		{
-			return p->weight;
-		}
-		else
-		{
-			return getMinWeight();
-		}
-	}
-	*/
-
 	double Trie::getWeight(const string& uniStr)
 	{
 		const TrieNodeInfo * p = _findUniStr(uniStr);
@@ -431,7 +450,8 @@ using namespace CppJieba;
 int main()
 {
     Trie trie;
-    trie.init("../dicts/segdict.utf8.v2.1");
+    trie.init();
+	trie.loadDict("../dicts/segdict.utf8.v2.1");
     //trie.init("dicts/jieba.dict.utf8");
     //trie.init("dict.100");
     //char utf[1024] = "我来到北京清华大学3D电视";
diff --git a/src/Trie.h b/src/Trie.h
index 6942308..e05a59f 100644
--- a/src/Trie.h
+++ b/src/Trie.h
@@ -67,6 +67,7 @@ namespace CppJieba
 
 			int64_t _totalCount;
 			double _minWeight;
+			bool _initFlag;
 
         public:
             typedef vector<TrieNodeInfo>::iterator iterator;
@@ -78,11 +79,16 @@ namespace CppJieba
         public:
             Trie();
             ~Trie();
-            bool init(const string& filePath);
+            bool init();
+			bool loadDict(const string& filePath);
 			bool setEncoding(const string& enc);
             bool destroy();
             void display();
 
+		private:
+			void _setInitFlag();
+			bool _getInitFlag();
+
 		public:
 			//const TrieNodeInfo* find(const string& uniStr);
 			//const TrieNodeInfo* find(const ChUnicode* const chUniStr, size_t len);
diff --git a/src/cppcommon/str_functs.cpp b/src/cppcommon/str_functs.cpp
index 9299e7d..4394206 100644
--- a/src/cppcommon/str_functs.cpp
+++ b/src/cppcommon/str_functs.cpp
@@ -291,7 +291,6 @@ namespace CPPCOMMON
 
 	string utf8ToUnicode(const string& utfStr)
 	{
-		cout<<__FILE__<<__LINE__<<endl;
 		if(utfStr.empty())
 		{
 			return "";
diff --git a/src/cppcommon/testdata/dict.utf8 b/src/cppcommon/testdata/dict.utf8
index e43de3d..c44839b 100644
--- a/src/cppcommon/testdata/dict.utf8
+++ b/src/cppcommon/testdata/dict.utf8
@@ -1,3 +1,4 @@
+包邮拉菲草18cm大檐进口草帽子超强遮阳防晒欧美日韩新款夏天 女
 AT&T 3 nz
 B超 3 n
 c# 3 nz