diff --git a/3rdpart/ZLToolKit b/3rdpart/ZLToolKit
index 8611e88c..f564c7ed 160000
--- a/3rdpart/ZLToolKit
+++ b/3rdpart/ZLToolKit
@@ -1 +1 @@
-Subproject commit 8611e88c2eda178973662dcfe180691ff1d8ba35
+Subproject commit f564c7ed27f141a3b5f08d239970b24d700a1244
diff --git a/src/Http/HttpFileManager.cpp b/src/Http/HttpFileManager.cpp
index dd2647a1..0e603e81 100644
--- a/src/Http/HttpFileManager.cpp
+++ b/src/Http/HttpFileManager.cpp
@@ -298,12 +298,6 @@ static bool makeFolderMenu(const string &httpPath, const string &strFullPath, st
     return true;
 }
 
-//字符串是否以xx结尾
-static bool end_of(const string &str, const string &substr){
-    auto pos = str.rfind(substr);
-    return pos != string::npos && pos == str.size() - substr.size();
-};
-
 //拦截hls的播放请求
 static bool emitHlsPlayed(const Parser &parser, const MediaInfo &mediaInfo, const HttpSession::HttpAccessPathInvoker &invoker,TcpSession &sender){
     //访问的hls.m3u8结尾，我们转换成kBroadcastMediaPlayed事件
@@ -488,7 +482,7 @@ static string pathCat(const string &a, const string &b){
  * @param cb 回调对象
  */
 static void accessFile(TcpSession &sender, const Parser &parser, const MediaInfo &mediaInfo, const string &strFile, const HttpFileManager::invoker &cb) {
-    bool is_hls = end_of(strFile, kHlsSuffix);
+    bool is_hls = end_with(strFile, kHlsSuffix);
     bool file_exist = File::is_file(strFile.data());
     if (!is_hls && !file_exist) {
         //文件不存在且不是hls,那么直接返回404
diff --git a/src/Player/PlayerBase.cpp b/src/Player/PlayerBase.cpp
index 775f38d5..c29c4c27 100644
--- a/src/Player/PlayerBase.cpp
+++ b/src/Player/PlayerBase.cpp
@@ -17,12 +17,6 @@ using namespace toolkit;
 
 namespace mediakit {
 
-//字符串是否以xx结尾
-static bool end_of(const string &str, const string &substr){
-    auto pos = str.rfind(substr);
-    return pos != string::npos && pos == str.size() - substr.size();
-}
-
 PlayerBase::Ptr PlayerBase::createPlayer(const EventPoller::Ptr &poller,const string &url_in) {
     static auto releasePlayer = [](PlayerBase *ptr){
         onceToken token(nullptr,[&](){
@@ -54,7 +48,7 @@ PlayerBase::Ptr PlayerBase::createPlayer(const EventPoller::Ptr &poller,const st
         return PlayerBase::Ptr(new RtmpPlayerImp(poller),releasePlayer);
     }
 
-    if ((strcasecmp("http",prefix.data()) == 0 || strcasecmp("https",prefix.data()) == 0) && end_of(url, ".m3u8")) {
+    if ((strcasecmp("http",prefix.data()) == 0 || strcasecmp("https",prefix.data()) == 0) && end_with(url, ".m3u8")) {
         return PlayerBase::Ptr(new HlsPlayerImp(poller),releasePlayer);
     }
 
diff --git a/src/Rtsp/RtspSession.cpp b/src/Rtsp/RtspSession.cpp
index 6f7a6a65..cdc44293 100644
--- a/src/Rtsp/RtspSession.cpp
+++ b/src/Rtsp/RtspSession.cpp
@@ -126,12 +126,6 @@ void RtspSession::onRecv(const Buffer::Ptr &buf) {
     }
 }
 
-//字符串是否以xx结尾
-static inline bool end_of(const string &str, const string &substr){
-    auto pos = str.rfind(substr);
-    return pos != string::npos && pos == str.size() - substr.size();
-}
-
 void RtspSession::onWholeRtspPacket(Parser &parser) {
     string method = parser.Method(); //提取出请求命令字
     _cseq = atoi(parser["CSeq"].data());
@@ -224,7 +218,7 @@ void RtspSession::handleReq_ANNOUNCE(const Parser &parser) {
     }
 
     auto full_url = parser.FullUrl();
-    if(end_of(full_url,".sdp")){
+    if(end_with(full_url,".sdp")){
         //去除.sdp后缀，防止EasyDarwin推流器强制添加.sdp后缀
         full_url = full_url.substr(0,full_url.length() - 4);
         _media_info.parse(full_url);