Update server/dao.py

server/dao.py

@@ -15,9 +15,11 @@ class tableStore:
 
     def __new__(cls, ots_client, table_name):
         if cls._instance is None:
+            print('table store cls 实例为none, 创建新的')
             cls._instance = super(tableStore, cls).__new__(cls)
             cls._instance.ots_client = ots_client
             cls._instance.table_name = table_name
+        
         return cls._instance
     
     def __init__(self,ots_client,table_name):