调整

app/controllers/messages_controller.rb

@@ -115,7 +115,7 @@ class MessagesController < ApplicationController
       notify_course_students(@message, @message.board&.course) if send_email
     rescue Exception => e
       uid_logger_error(e.message)
-      tip_exception("修改失败")
+      tip_exception(e.message)
       raise ActiveRecord::Rollback
     end
   end