diff --git a/src/cache/config.h b/src/cache/config.h
index b8d71e3c2..158364d9a 100644
--- a/src/cache/config.h
+++ b/src/cache/config.h
@@ -1,4 +1,4 @@
-// Copyright (c) 2023-present, Qihoo, Inc.  All rights reserved.
+// Copyright (c) 2024-present, Qihoo, Inc.  All rights reserved.
 // This source code is licensed under the BSD-style license found in the
 // LICENSE file in the root directory of this source tree. An additional grant
 // of patent rights can be found in the PATENTS file in the same directory.
diff --git a/src/cache/redisCache.h b/src/cache/redisCache.h
index 7d4b22145..ffde1c4e9 100644
--- a/src/cache/redisCache.h
+++ b/src/cache/redisCache.h
@@ -18,7 +18,6 @@ extern "C" {
 #include "rediscache/redis.h"
 }
 
-//#include "rediscache/redis.h"
 #include "config.h"
 #include "pstd/pstd_status.h"
 #include "storage/storage.h"
@@ -43,10 +42,10 @@ class RedisCache {
   // Normal Commands
   bool Exists(std::string &key);
   int64_t DbSize(void);
-  void FlushCache(void);  // 清空cache
+  void FlushCache(void);  
 
-  Status Del(const std::string &key);            // 删除某个key
-  Status Expire(std::string &key, int64_t ttl);  // 设置键的TTL
+  Status Del(const std::string &key);            
+  Status Expire(std::string &key, int64_t ttl);  
   Status Expireat(std::string &key, int64_t ttl);
   Status TTL(std::string &key, int64_t *ttl);
   Status Persist(std::string &key);
diff --git a/src/db.h b/src/db.h
index acf143b31..77ea3603f 100644
--- a/src/db.h
+++ b/src/db.h
@@ -16,8 +16,6 @@
 #include "storage/storage.h"
 
 namespace pikiwidb {
-// class PCache;
-// class PCacheLoadThread;
 
 class DB {
  public:
diff --git a/src/thread.cc b/src/thread.cc
index e58085b3e..d91f56865 100644
--- a/src/thread.cc
+++ b/src/thread.cc
@@ -6,9 +6,6 @@
  */
 
 #include "thread.h"
-// #include "net/include/net_define.h"
-// #include "net/src/net_thread_name.h"
-// #include "pstd/xdebug.h"
 
 namespace pikiwidb {