diff --git a/app/views/syllabuses/_syllabus_member_list.html.erb b/app/views/syllabuses/_syllabus_member_list.html.erb
index 84bbe1d01..97a500f56 100644
--- a/app/views/syllabuses/_syllabus_member_list.html.erb
+++ b/app/views/syllabuses/_syllabus_member_list.html.erb
@@ -42,7 +42,9 @@
               <% else %>
                   <a href="javascript:void(0)" class="fr sy_btn_grey mr5" title="该老师已在本课程下创建了班级，不能删除">删除</a>
               <% end %>
-            <% if i != 0 && i < count - 1 %>
+            <% if i == 0 && count == 1 %>
+                &nbsp;
+            <% elsif i != 0 && i < count - 1 %>
                 <%= link_to('下移', {:controller => 'syllabus_member', :action => 'update_rank', :id => member.id, :syllabus => @syllabus.id, :opr => 'down'},:remote => true, :method => 'post', :class => "fr sy_btn_blue mr5", :title => '下移') %>
                 <%= link_to('上移', {:controller => 'syllabus_member', :action => 'update_rank', :id => member.id, :syllabus => @syllabus.id, :opr => 'up'},:remote => true, :method => 'post', :class => "fr sy_btn_blue mr5", :title => '上移') %>
             <% elsif i < count - 1 %>