diff --git a/client/client.cpp b/client/client.cpp
index fba65aa..87d4598 100644
--- a/client/client.cpp
+++ b/client/client.cpp
@@ -198,9 +198,7 @@ void CClient::handle_frame(CFrameBuffer* buf)
         logger_->error("{} nullptr.", __FUNCTION__);
         return;
     }
-
-    auto t = static_cast<FrameType>(buf->type_);
-    switch (t) {
+    switch (buf->type_) {
     case TYPE_GET_LIST: {
         task_list_.clear();
         std::string source(buf->data_, buf->len_);
diff --git a/net/net_base.cpp b/net/net_base.cpp
index 3d2b5be..87a4adb 100644
--- a/net/net_base.cpp
+++ b/net/net_base.cpp
@@ -60,11 +60,8 @@ void CTcpClient::async_recv()
         if (ec) {
             if (ec == asio::error::eof) {
                 logger_->error("Remote Server Closed.");
-                return;
             }
-            async_recv();
         } else {
-            std::lock_guard<std::mutex> lock(mutex_);
             buffer_.push(tmp_buf_.data(), length);
             auto* frame = CTransProtocal::parse(buffer_);
             if (frame) {
diff --git a/server/server.cpp b/server/server.cpp
index 070275a..d7cd153 100644
--- a/server/server.cpp
+++ b/server/server.cpp
@@ -100,9 +100,8 @@ void CTcpServer::handle_frame()
             std::this_thread::sleep_for(std::chrono::milliseconds(1));
             continue;
         }
-
-        FrameType t = static_cast<FrameType>(buf->type_);
-        switch (t) {
+        
+        switch (buf->type_) {
         case TYPE_GET_LIST: {
             logger_->info("[{}] GetList.", buf->fid_);
             get_client_list(&buf);
diff --git a/util/util.cpp b/util/util.cpp
index bddcd7e..87be4bb 100644
--- a/util/util.cpp
+++ b/util/util.cpp
@@ -65,7 +65,6 @@ CFrameBuffer* CTransProtocal::parse(CMutBuffer& buffer)
     result->tid_ = std::string(buffer.get_data() + find + 2 + 2 + 1 + 32);
     result->mark_ = mark;
     result->type_ = static_cast<FrameType>(type);
-    std::memset(result->data_, 0x0, len);
     std::memcpy(result->data_, buffer.get_data() + find + 2 + 2 + 1 + 4 + 32 + 32, len);
     buffer.remove_of(0, tail_index + 2);
     return result;
@@ -109,10 +108,4 @@ CFrameBuffer::~CFrameBuffer()
 {
     delete[] data_;
     len_ = 0;
-}
-
-SimpleBuffer::~SimpleBuffer()
-{
-    delete[] data_;
-    len_ = 0;
-}
+}
\ No newline at end of file
diff --git a/util/util.h b/util/util.h
index e371f1a..b46832c 100644
--- a/util/util.h
+++ b/util/util.h
@@ -40,17 +40,7 @@ public:
     int len_{};
     char mark_{};
 };
-class SimpleBuffer
-{
-public:
-    SimpleBuffer() = default;
-    ~SimpleBuffer();
 
-public:
-    std::string id_;
-    char* data_{};
-    int len_{};
-};
 using ExFun_t = std::function<void(CFrameBuffer* buf)>;
 /*
 【 transm TCP 数据协议 】