diff --git a/zhenxun/services/db_context.py b/zhenxun/services/db_context.py
index c8e37bc4..c9203a7d 100644
--- a/zhenxun/services/db_context.py
+++ b/zhenxun/services/db_context.py
@@ -1,4 +1,3 @@
-
 from asyncio import Semaphore
 from collections.abc import Iterable
 from typing import Any, ClassVar
@@ -32,6 +31,7 @@ def _():
     global CACHE_FLAG
     CACHE_FLAG = True
 
+
 class Model(TortoiseModel):
     """
     自动添加模块