diff --git a/convert-example.json b/convert-example.json
index d1a2b4b..2053606 100755
--- a/convert-example.json
+++ b/convert-example.json
@@ -38,6 +38,7 @@
                         OPENDATE, CLOSEDATE, CARDVERNO, LASTSAVED",
         "remark": "导入卡表前更新 begin_time 不能为空",
         "pre_exec" : ["update ykt_cur.t_pif_card set begin_time='20061001' where card_id=43430"],
+        "dst_pre_exec": ["update t_card where cardid=10"],
         "post_exec": ["update t_card set cardphytype=20"]
     }
 ]