diff --git a/book_manager.py b/book_manager.py
index 07a5b8d..4b68529 100644
--- a/book_manager.py
+++ b/book_manager.py
@@ -7,8 +7,8 @@ class BookManager:
     
     def __init__(self, data_file='books.json'):
         """初始化图书管理器，加载已有图书数据"""
-        self.data_file = data_file
-        self.books = self._load_books()
+        #self.data_file = data_file
+        #self.books = self._load_books()
     
     def _load_books(self):
         """从文件加载图书数据"""