diff --git a/Learun.Framework.Ultimate V7/Learun.Application.Web/XmlConfig/system.config b/Learun.Framework.Ultimate V7/Learun.Application.Web/XmlConfig/system.config
index 0d604a72e..aa855e1b9 100644
--- a/Learun.Framework.Ultimate V7/Learun.Application.Web/XmlConfig/system.config	
+++ b/Learun.Framework.Ultimate V7/Learun.Application.Web/XmlConfig/system.config	
@@ -157,7 +157,7 @@
   <!--注册教师生成编号 金隅:jy;西昌：xc；大厂：dc-->
   <add key="EmpNoRule" value="jy"/>
   <!--考勤明细统计时查询的职工编号前缀 大厂：DCZZ-->
-  <add key="ADR_RecordUserNoPrev" value="DCZZ"/>
+  <add key="ADR_RecordUserNoPrev" value=""/>
   <!--第三方登录跳转地址（最后不加/）-->
   <add key="redirect_url" value="http://localhost:20472"/>
   <add key="QJUrl" value="www.qj.com"/>