diff --git a/app/controllers/application_controller.rb b/app/controllers/application_controller.rb
index 67948a8e1..cab5ada7c 100644
--- a/app/controllers/application_controller.rb
+++ b/app/controllers/application_controller.rb
@@ -267,6 +267,8 @@ class ApplicationController < ActionController::Base
         end
       when "contest"
         return true
+      when "Course"
+        allowed = User.current.allowed_to?(:course_attachments_download, @course, :global => false)
       else
         return true
     end
diff --git a/app/controllers/attachments_controller.rb b/app/controllers/attachments_controller.rb
index a57b5f8a5..b28fda55b 100644
--- a/app/controllers/attachments_controller.rb
+++ b/app/controllers/attachments_controller.rb
@@ -76,7 +76,7 @@ class AttachmentsController < ApplicationController
       candown = User.current.member_of?(project) || (project.is_public && @attachment.is_public == 1)
     elsif (@attachment.container.has_attribute?(:course) ||@attachment.container.has_attribute?(:course_id) ) && @attachment.container.course
       course = @attachment.container.course
-      candown= User.current.member_of_course?(course) || (course.is_public==1 && @attachment.is_public == 1)
+      candown = User.current.member_of_course?(course) || (course.is_public==1 && @attachment.is_public == 1)
     elsif @attachment.container.is_a?(Course)
       course = @attachment.container
       candown= User.current.member_of_course?(course) || (course.is_public==1 && @attachment.is_public == 1)
diff --git a/app/helpers/files_helper.rb b/app/helpers/files_helper.rb
index 4f3f401c9..f1f4f06f4 100644
--- a/app/helpers/files_helper.rb
+++ b/app/helpers/files_helper.rb
@@ -72,5 +72,10 @@ module FilesHelper
     result
   end
 
-
+  def get_qute_number attachment
+    if attachment.copy_from.nil?
+      return 0
+    end
+    count = Attachment.find_by_sql("select count(*) from attachments where copy_from = #{attachment.copy_from}")
+  end
 end
\ No newline at end of file
diff --git a/app/models/role.rb b/app/models/role.rb
index 57fccd53c..f363b52bf 100644
--- a/app/models/role.rb
+++ b/app/models/role.rb
@@ -161,7 +161,7 @@ class Role < ActiveRecord::Base
     if action.is_a? Hash
       allowed_actions.include? "#{action[:controller]}/#{action[:action]}"
     else
-        allowed_permissions.include? action
+      allowed_permissions.include? action
     end
   end
 
diff --git a/app/views/files/_course_list.html.erb b/app/views/files/_course_list.html.erb
index cb776aeb7..51091caae 100644
--- a/app/views/files/_course_list.html.erb
+++ b/app/views/files/_course_list.html.erb
@@ -1,8 +1,8 @@
 <% delete_allowed = User.current.allowed_to?(:manage_files, course) %>
 <div class="re_con_top">
   <p class="f_l  c_blue f_b f_14">共有&nbsp;<%= User.current.member_of_course?(course) ? all_attachments.count : 0 %>&nbsp;个资源</p>
-  <!-- <p class="f_r">
-    <#% if @order == "asc" %>
+   <p class="f_r" style="color: #808080">
+    <!--<#% if @order == "asc" %>
         按&nbsp;<#%= link_to "时间",course_files_path(course,:sort=>"created_on:desc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
         <#%= link_to "下载次数",course_files_path(course,:sort=>"downloads:desc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;/&nbsp;
         <a href="#" class="f_b c_grey">引用次数</a>&nbsp;排序
@@ -10,8 +10,9 @@
         按&nbsp;<#%= link_to "时间",course_files_path(course,:sort=>"created_on:asc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"created_on"} %>&nbsp;/&nbsp;
         <#%= link_to "下载次数",course_files_path(course,:sort=>"downloads:asc"),:class => "f_b c_grey"  %><#%= render partial: 'arrow_show',locals: { sort: sort,order:order,current:"downloads"} %>&nbsp;/&nbsp;
         <a href="#" class="f_b c_grey">引用次数</a>&nbsp;排序
-    <#% end %>
-  </p>-->
+    <#% end %>-->
+     资源列表的多样化排序将在下周上线...
+  </p>
 </div>
 <div class="cl"></div>
 <% curse_attachments.each do |file| %>
@@ -40,7 +41,7 @@
         <p class="f_l c_grey02 font">文件大小：<%= number_to_human_size(file.filesize) %></p>
         <%= link_to( l(:button_delete), attachment_path(file),
                      :data => {:confirm => l(:text_are_you_sure)}, :method => :delete,:class => "f_r re_de") if delete_allowed && file.container_id == @course.id && file.container_type == "Course"%>
-        <p class="f_r c_grey02" ><%= time_tag(file.created_on).html_safe %><%= l(:label_bids_published_ago) %>&nbsp;&nbsp;|&nbsp;&nbsp;下载<%= file.downloads %>&nbsp;&nbsp;|&nbsp;&nbsp;引用0 </p>
+        <p class="f_r c_grey02" ><%= time_tag(file.created_on).html_safe %><%= l(:label_bids_published_ago) %>&nbsp;&nbsp;|&nbsp;&nbsp;下载<%= file.downloads %>&nbsp;&nbsp;|&nbsp;&nbsp;引用<%=get_qute_number file %> </p>
       </div>
       <div class="cl"></div>
       <div class="tag_h">
diff --git a/app/views/files/_show_quote_resource.html.erb b/app/views/files/_show_quote_resource.html.erb
index ef907f40f..58b0edda0 100644
--- a/app/views/files/_show_quote_resource.html.erb
+++ b/app/views/files/_show_quote_resource.html.erb
@@ -1,8 +1,8 @@
 <div id="popbox_upload" style="margin-top: -30px;margin-left: -20px;margin-right: -10px;">
   <div class="upload_con">
-    <div id="error_show"></div>
     <h2>将此课件引入我的课程资源库</h2>
     <div class="upload_box">
+      <div id="error_show" style="color: red;"></div>
       <%= form_tag course_attach_relations_path,
                    method: :post,
                    remote: true,