fix

main.py

@@ -346,9 +346,19 @@ async def perform_file_action(
         files = await THUNDERX_CLIENT.file_list(100, file_id, "", {})
         keyboard = []
 
+        print(files["files"])
+
         if files["files"] is None:
             await update.message.reply_text("❌未找到文件!!")
         else:
+            keyboard.append(
+                [
+                    InlineKeyboardButton(
+                        f"↩️返回上级",
+                        callback_data=f"download_file:{parent_id}:{parent_id}",
+                    ),
+                ]
+            )
             # 为每个文件创建按钮和操作选项
             for file in files["files"]:
                 if file["kind"].lower() == "drive#folder":