diff --git a/app/model/KnowledgeDoc.py b/app/model/KnowledgeDoc.py
index 70a040d..b71f307 100644
--- a/app/model/KnowledgeDoc.py
+++ b/app/model/KnowledgeDoc.py
@@ -58,11 +58,11 @@ class KnowledgeDocModel(BasicModel, table=True):
   def creator(self, value: Optional[UserServiceModel]) -> None:
     pass
 
-
+# 删除文档字后，要删除文档在Milvus中对应的文档块
 async def handle_after_delete(delete_cls, row_dict, session):
   await milvus_service.async_delete(delete_cls.id)
 
-
+# 批量删除文档字后，要删除文档在Milvus中对应的文档块
 async def handle_after_batch_delete(delete_cls_list, row_dict_list, session):
   task_list = [
     asyncio.create_task(handle_after_delete(doc_cls, {}, session))