diff --git a/Base/Controller/AOCommon.cs b/Base/Controller/AOCommon.cs
index c728686..658f1f7 100644
--- a/Base/Controller/AOCommon.cs
+++ b/Base/Controller/AOCommon.cs
@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Web;