diff --git a/HJGL/.vs/HJGL/v17/.suo b/HJGL/.vs/HJGL/v17/.suo
index 1758fee..3152ecc 100644
Binary files a/HJGL/.vs/HJGL/v17/.suo and b/HJGL/.vs/HJGL/v17/.suo differ
diff --git a/HJGL/BLL/Common/MailHelper.cs b/HJGL/BLL/Common/MailHelper.cs
index ba07b16..e789553 100644
--- a/HJGL/BLL/Common/MailHelper.cs
+++ b/HJGL/BLL/Common/MailHelper.cs
@@ -120,7 +120,9 @@ namespace FineUIPro.Web.common
                 mail.Subject = mailSubject;
                 mail.BodyFormat = System.Web.Mail.MailFormat.Html;
                 mail.Body =mailBody;
-                mail.Cc = string.Join(",", mailCC);
+                if(mailCC!=null  &&mailCC.Length>0)
+                    mail.Cc = string.Join(",", mailCC);
+
                 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/smtpauthenticate", "1");
                 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendusername", ps.EmailYx);
                 mail.Fields.Add("http://schemas.microsoft.com/cdo/configuration/sendpassword", ps.EmailPass);