diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 9ae57db3d..e24a7386d 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -175,7 +175,7 @@ class CoursesController < ApplicationController
     ## 有角色参数的才是课程，没有的就是项目
     @render_file = 'member_list'
     @teachers= searchTeacherAndAssistant(@course)
-    @canShowCode = isCourseTeacher(User.current.id,@course)
+    @canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
     case params[:role]
       when '1'
         @subPage_title = l :label_teacher_list
diff --git a/app/views/courses/_member_list.html.erb b/app/views/courses/_member_list.html.erb
index edd04bc97..a6ee0b9b4 100644
--- a/app/views/courses/_member_list.html.erb
+++ b/app/views/courses/_member_list.html.erb
@@ -13,7 +13,7 @@
       <% end %>
 		<!--teacher's code disapeared  moified by huang-->
 
-      <%if @canShowCode%>
+      <% if @canShowCode %>
         <%= content_tag "p", "#{l(:label_bidding_user_studentcode)}#{' : '}#{member.user.user_extensions.student_id}", :class => "nomargin avatar_name" %>
       <% end %>
       <div class ="clear avatar_name"> &nbsp;
diff --git a/lib/tasks/user_new_score.rake b/lib/tasks/user_new_score.rake
index 19f003f4d..bbcc8a310 100644
--- a/lib/tasks/user_new_score.rake
+++ b/lib/tasks/user_new_score.rake
@@ -3,6 +3,7 @@ task :user_new_score do
   puts "user_score sync."
 end
 
+#速度太慢，不用
 namespace :user_new_score do
   desc "calculating user score"
   task :calculating => :environment do