作业列表优化，课程加入退出

app/views/layouts/_project_info.html.erb

@@ -9,13 +9,13 @@
 <!--<a href="#"><img src="images/courses/pic_courses.jpg" width="60" height="60" alt="logo" /></a>-->
 <%= image_tag(url_to_avatar(@course), :width => "60", :height => "60") %>
 </div>
-<div class="pr_info_id fl mb5 f14"><%= @course.is_public == 0 ? "私有课程" : "公开课程" %>
+<div class="pr_info_id fl mb5 f14">ID:<%= @course.id%><%= @course.is_public == 0 ? "（私有）" : "（公开）" %>
   <% if @course.id == 370 %>
     <img src="/images/course/medal.png" alt="精品课程" style="vertical-align:bottom;" class="ml5" />
   <% end %>
 </div>
 <div class="pr_info_id fl f14">
-ID:<%= @course.id%>
+<a href="" class="linkGrey">加入课程</a>
 </div>
 <!--<div class="pr_info_id fl mb5 f14">
       ID:<%#= @course.id%>

app/views/student_work/_programing_work_show.html.erb

@@ -99,8 +99,9 @@
         </div>
     <% end%>
   </div>
+  <div class="cl"></div>
   <!---ping_box end--->
-  <a href="javascript:void(0);" class="fr linkBlue mt5 mb5" onclick="$('#about_hwork_<%= work.id%>').html('');">收起</a>
+  <a href="javascript:void(0);" class="linkBlue mt5 mb5" style="margin-left:auto; margin-right: auto; display:block; width: 24px;" onclick="$('#about_hwork_<%= work.id%>').html('');">收起</a>
   <div class="cl"></div>
 </div>
 <script type="text/javascript">

app/views/student_work/_show.html.erb

@@ -99,8 +99,9 @@
         </div>
     <% end%>
   </div>
+  <div class="cl"></div>
   <!---ping_box end--->
-  <a href="javascript:void(0);" class="fr linkBlue mt5 mb5" onclick="$('#about_hwork_<%= work.id%>').html('');">收起</a>
+  <a href="javascript:void(0);" class="linkBlue mt5 mb5" style="margin-left:auto; margin-right: auto; display:block; width: 24px;" onclick="$('#about_hwork_<%= work.id%>').html('');">收起</a>
   <div class="cl"></div>
 </div>
 <script type="text/javascript">

app/views/student_work/_work_attachments_status.html.erb

@@ -1,7 +1,7 @@
 <% attachments.each_with_index do |attachment,i| %>
     <div id="attachment_<%= attachment.id%>">
       <span class="fl">
-          <span title="<%= attachment.filename %>">
+          <span title="点击可下载">
             <%= link_to_short_attachment attachment,:length=> 58, :class => 'hidden link_file_a fl newsBlue mw360', :download => true -%>
           </span>
       </span>