diff --git a/.vscode/settings.json b/.vscode/settings.json
index 113c22c..ea5c5ef 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -1,8 +1,8 @@
 {
     "files.autoSave": "onFocusChange",
     "editor.fontSize": 14,
-    "editor.fontFamily": "'Source Code Pro', 'Source Code Pro', 'Source Code Pro'",
-    "terminal.integrated.fontFamily": "Source Code Pro",
+    "editor.fontFamily": "'Monaspace Krypton Light', 'Monaspace Krypton Light', 'Monaspace Krypton Light'",
+    "terminal.integrated.fontFamily": "Monaspace Krypton Light",
     "cmake.configureOnOpen": true,
     "cmake.debugConfig": {
         "console": "integratedTerminal",
diff --git a/fs/fs.lua b/fs/fs.lua
index 28eabf1..3d00497 100644
--- a/fs/fs.lua
+++ b/fs/fs.lua
@@ -1,3 +1,4 @@
 -- 加载模块
 local fs = require("lua_fs")
-print(fs.get_current_directory())
\ No newline at end of file
+print(fs.get_current_directory())
+print(fs.get_extension("test.lua"))
\ No newline at end of file
diff --git a/fs/lib.cxx b/fs/lib.cxx
index c7be35e..88c31f4 100644
--- a/fs/lib.cxx
+++ b/fs/lib.cxx
@@ -23,6 +23,7 @@ static const luaL_Reg lua_fs[] = {{"exists", exists},
                                   {"append_path", append_path},
                                   {"mkdir", mkdir},
                                   {"normalize", normalize},
+                                  {"get_extension", get_extension},
                                   {NULL, NULL}};
 
 int luaopen_lua_fs(lua_State* L)
@@ -66,6 +67,17 @@ int mkdir(lua_State* L)
     }
 }
 
+/// @brief 获取文件扩展名
+/// @param path string 文件路径
+/// @return string
+int get_extension(lua_State* L)
+{
+    const char* path = luaL_checkstring(L, 1);
+    auto r = fs::path(path).extension().string();
+    lua_pushstring(L, r.c_str());
+    return 1;
+}
+
 /// @brief 获取父目录
 /// @param path string 路径
 /// @return string
@@ -78,7 +90,7 @@ int get_parent(lua_State* L)
 }
 
 /// @brief 规范化路径
-/// @param path string 路径 
+/// @param path string 路径
 /// @return string
 int normalize(lua_State* L)
 {
@@ -166,7 +178,7 @@ int get_current_directory(lua_State* L)
     return 1;
 }
 
-/// @brief 获取一个目录下所有文件（不递归）
+/// @brief 获取一个目录下所有文件（包括文件夹，不递归）
 /// @param dir_path string 目录
 /// @return table
 int get_dir_files(lua_State* L)
@@ -187,11 +199,9 @@ int get_dir_files(lua_State* L)
 
     int index = 1;
     for (const auto& entry : fs::directory_iterator(dir_path)) {
-        if (fs::is_regular_file(entry.status())) {
-            lua_pushstring(L, entry.path().filename().string().c_str());
-            lua_rawseti(L, table_index, index);
-            index++;
-        }
+        lua_pushstring(L, entry.path().filename().string().c_str());
+        lua_rawseti(L, table_index, index);
+        index++;
     }
     return 1;
 }
\ No newline at end of file
diff --git a/fs/lib.h b/fs/lib.h
index 937a5b4..d4e5dae 100644
--- a/fs/lib.h
+++ b/fs/lib.h
@@ -30,6 +30,7 @@ LIB_API int get_parent(lua_State* L);
 LIB_API int append_path(lua_State* L);
 LIB_API int mkdir(lua_State* L);
 LIB_API int normalize(lua_State* L);
+LIB_API int get_extension(lua_State* L);
 
 #ifdef __cplusplus
 }