diff --git a/common/libex/include/ex/ex_str.h b/common/libex/include/ex/ex_str.h
index 4fc9ce4..ca9cea9 100644
--- a/common/libex/include/ex/ex_str.h
+++ b/common/libex/include/ex/ex_str.h
@@ -65,7 +65,7 @@ typedef std::wostringstream ex_woss;
 
 typedef std::vector<ex_astr> ex_astrs;
 typedef std::vector<ex_wstr> ex_wstrs;
-typedef std::vector<ex_utf16> ex_str_utf16le;
+//typedef std::vector<ex_utf16> ex_str_utf16le;
 
 bool ex_wstr2astr(const ex_wstr& in_str, ex_astr& out_str, int code_page = EX_CODEPAGE_DEFAULT);
 bool ex_wstr2astr(const wchar_t* in_str, ex_astr& out_str, int code_page = EX_CODEPAGE_DEFAULT);
@@ -81,8 +81,22 @@ void ex_remove_white_space(ex_wstr& str_fix, int ulFlag = EX_RSC_ALL);
 ex_astr& ex_replace_all(ex_astr& str, const ex_astr& old_value, const ex_astr& new_value);
 ex_wstr& ex_replace_all(ex_wstr& str, const ex_wstr& old_value, const ex_wstr& new_value);
 
+class ex_str_utf16le {
+public:
+    ex_str_utf16le();
+    ~ex_str_utf16le();
+
+    size_t length() const;
+    bool from_utf8(const ex_astr& from);
+
+    const uint16_t* c_str() const;
+
+protected:
+    std::vector<uint16_t> m_data;
+};
+
 // 将UTF8字符串转换为UTF16-LE字符串（输出结果包含\0结束符）
-bool ex_utf8_to_utf16le(const std::string& from, ex_str_utf16le& to);
+//bool ex_utf8_to_utf16le(const ex_astr& from, ex_str_utf16le& to);
 
 #endif
 
diff --git a/common/libex/src/ex_str.cpp b/common/libex/src/ex_str.cpp
index 1aa6046..b88fabc 100644
--- a/common/libex/src/ex_str.cpp
+++ b/common/libex/src/ex_str.cpp
@@ -835,21 +835,48 @@ static int MultiByteToWideChar(UINT CodePage, DWORD dwFlags, LPCSTR lpMultiByteS
 
 #endif
 
-
-
-bool ex_utf8_to_utf16le(const std::string& from, ex_str_utf16le& to)
-{
-	int iSize = MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, NULL, 0);
-	if (iSize <= 0)
-		return false;
-
-	//++iSize;
-	to.resize(iSize);
-	memset(&to[0], 0, sizeof(ex_utf16));
-
-	MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, &to[0], iSize);
-
-	return true;
+ex_str_utf16le::ex_str_utf16le() {
+    m_data.resize(1);
+    memset(&m_data[0], 0, 1);
 }
 
+ex_str_utf16le::~ex_str_utf16le() {}
+
+size_t ex_str_utf16le::length() const {
+    return m_data.size() - 1;
+}
+
+bool ex_str_utf16le::from_utf8(const ex_astr& from) {
+    int iSize = MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, NULL, 0);
+    // 注意iSize包括\0结束符
+    if (iSize <= 0)
+        return false;
+
+    m_data.resize(iSize);
+    memset(&m_data[0], 0, sizeof(ex_utf16));
+
+    MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, (LPWSTR)&m_data[0], iSize);
+
+    return true;
+}
+
+const uint16_t* ex_str_utf16le::c_str() const {
+    return &m_data[0];
+}
+
+// bool ex_utf8_to_utf16le(const ex_astr& from, ex_str_utf16le& to)
+// {
+// 	int iSize = MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, NULL, 0);
+// 	if (iSize <= 0)
+// 		return false;
+// 
+// 	//++iSize;
+// 	to.resize(iSize);
+// 	memset(&to[0], 0, sizeof(ex_utf16));
+// 
+// 	MultiByteToWideChar(CP_UTF8, 0, from.c_str(), -1, &to[0], iSize);
+// 
+// 	return true;
+// }
+
 #endif
diff --git a/common/teleport/teleport_const.h b/common/teleport/teleport_const.h
index 1f33d72..df55075 100644
--- a/common/teleport/teleport_const.h
+++ b/common/teleport/teleport_const.h
@@ -113,7 +113,8 @@
 #define TPE_UNKNOWN_CMD				124		// 未知的命令
 #define TPE_JSON_FORMAT				125		// 错误的JSON格式（需要JSON格式数据，但是却无法按JSON格式解码）
 #define TPE_PARAM					126		// 参数错误
-#define TPE_DATA					127		// 数据错误
+#define TPE_INVALID_DATA			127		// 数据错误
+#define TPE_UNEXPECTED_DATA			128		// 不是期望的数据
 
 // #define TPE_OPENFILE_ERROR			0x1007	// 无法打开文件
 // #define TPE_GETTEMPPATH_ERROR		0x1007