diff --git a/clear_up.py.template b/clear_up.py.template
index f3391f8..2256fdc 100644
--- a/clear_up.py.template
+++ b/clear_up.py.template
@@ -1,3 +1,6 @@
+"""
+ÇåÀí²âÊÔÊý¾Ý
+"""
 import json
 
 from settings import settings
@@ -22,7 +25,7 @@ where
 `#event_time`>addDays(now('UTC'),-3) and (
     lower(`#os`) = 'windows'
    or svrindex not in {serverid}
-   or svrindex is null )
+ )
    
 group by `#account_id`, `#event_time`, `#event_name`,`#os`,`svrindex`
 having n = 1 limit 2000"""