diff --git a/app/controllers/courses_controller.rb b/app/controllers/courses_controller.rb
index 87a5184f7..2e3f42784 100644
--- a/app/controllers/courses_controller.rb
+++ b/app/controllers/courses_controller.rb
@@ -225,6 +225,8 @@ class CoursesController < ApplicationController
       group.name = params[:group_name]
       group.save
     end
+    @canShowCode = isCourseTeacher(User.current.id,@course) && params[:role] != '1'
+    @is_remote = true
     @course_groups = @course.course_groups
   end
   def join_group
@@ -233,6 +235,7 @@ class CoursesController < ApplicationController
     member.course_group_id = group.id
     member.save
     @group = group
+
     search_group_members group
   end
   def unjoin_group
@@ -241,6 +244,7 @@ class CoursesController < ApplicationController
     member.course_group_id = 0
     member.save
     @group = group
+
     search_group_members group
   end
   def searchgroupmembers
diff --git a/app/helpers/watchers_helper.rb b/app/helpers/watchers_helper.rb
index 6818b4859..8acd0b577 100644
--- a/app/helpers/watchers_helper.rb
+++ b/app/helpers/watchers_helper.rb
@@ -126,13 +126,16 @@ module WatchersHelper
       text = l(:label_exit_course)
 
       if joined
-        link_to text, {:controller => "courses", :action => "join_group", :object_id => "#{group.id}"}, :remote => true, :method => 'delete', :id => "#{group.id}", :confirm => l(:text_are_you_sure_out_group), :class => []+options
+        link_to text, {:controller => "courses", :action => "join_group", :object_id => "#{group.id}"},
+                :remote => true, :method => 'delete',
+                :id => "#{group.id}", :style => "padding: 8px 8px 4px;",
+                :confirm => l(:text_are_you_sure_out_group), :class => 'group_in'
 
       end
     else
       text = l(:label_new_join)
       form_tag({:controller => "courses", :action => "join_group", :object_id => "#{group.id}"}, :remote => true, :method => 'post') do
-        submit_tag text, class: "submit f_l", style: "width: 43px;height: 21px;"
+        submit_tag text, class: "group_in", style: "width: 43px;height: 21px;"
       end
     end
   end
diff --git a/app/views/courses/_groups_name.html.erb b/app/views/courses/_groups_name.html.erb
index 32f85ba21..de8425b45 100644
--- a/app/views/courses/_groups_name.html.erb
+++ b/app/views/courses/_groups_name.html.erb
@@ -16,10 +16,11 @@
       </li>
       <% if course_groups.any? %>
       <% course_groups.each do |group| %>
+      <% group_display = group.name + "(" + group.members.count.to_s + "人)" %>
       <li class="classbox" id="group_name_<%= group.id %>">
         <%= form_tag(searchgroupmembers_course_path(@course,:group_id => group.id), method: 'get', remote: true) do %>
             <%#= text_field_tag "group_id", params[:group_id] %>
-            <%= submit_tag group.name, :onclick => "$asign_id(#{group.id})",:style => "background: #f8df8c; border:0px; color: black; float:left;"%>
+            <%= submit_tag group_display, :onclick => "$asign_id(#{group.id})",:style => "background: #f8df8c; border:0px; color: black; float:left;"%>
             <% if @canShowCode %>
             <a href="javascript:void(0)" class="f_l" onclick="$('#add_tag_<%= group.id %>').slideToggle();"><img src="/images/pic_edit.png" width="14" height="15" alt="编辑班级" /></a>
             <% end %>
@@ -36,12 +37,13 @@
       </li>
       <% end %>
      <% end %>
+      <% if @canShowCode %>
       <li style="margin-left:15px;">
         <a href="javascript:void(0)" class="st_add f_l" onclick="$('#add_tag04').slideToggle();">+添加分班</a>
       </li>
       <li>
         <span id="add_tag04" style="display:none; vertical-align: middle;" class="ml10 f_l">
-      <%= form_tag( addgroups_course_path(@course),  method: 'get',:remote=>true) do %>
+        <%= form_tag( addgroups_course_path(@course),  method: 'get',:remote=>true) do %>
 
                     <%= text_field_tag "group_name", params[:group_name], size: "20", class: "isTxt w90 f_l", style: "padding: 0px",  maxlength: "100" %>
                     <%= submit_tag '', class: "submit f_l", style: "width: 43px;height: 21px;background: url(/images/btn.png) no-repeat 0 0;" %>
@@ -50,6 +52,7 @@
        <% end %>
        </span>
       </li>
+      <% end %>
     </ul>
    
     
diff --git a/app/views/courses/_member_list.html.erb b/app/views/courses/_member_list.html.erb
index c915587c1..cba88b141 100644
--- a/app/views/courses/_member_list.html.erb
+++ b/app/views/courses/_member_list.html.erb
@@ -1,9 +1,9 @@
-<div style="font-size: 18px">
+<div >
 <% if @group %>
       <% if !@canShowCode %>
           <%= join_in_course_group(@course.course_groups,@group, User.current) %>
       <% end %>&nbsp;&nbsp;&nbsp;
-    <span ><%= @group.name %><%= @subPage_title %></span>
+    <span style="font-size: 18px"><%= @group.name %><%= @subPage_title %></span>
 
 <% end %>
 </div>
diff --git a/public/stylesheets/course_group.css b/public/stylesheets/course_group.css
index 81e9f68e4..10d69f384 100644
--- a/public/stylesheets/course_group.css
+++ b/public/stylesheets/course_group.css
@@ -79,4 +79,18 @@ a:hover.st_add{ color:#ff8e15;}
 
 .submit{height:21px;border:0; cursor:pointer; background:url(../images/btn.png) no-repeat  0 0;width:42px; margin-top:2px; margin-left:3px; }
 .submit_2{height:21px;border:0; cursor:pointer; background:url(../images/btn1.png) no-repeat  0 0;width:42px; margin-top:2px; margin-left:3px; }
-.isTxt{background:#fbfbfb url(../images/inputBg.png) repeat-x left top;height:22px;line-height:22px;border:1px solid #c1c1c1;padding:0 5px;color:#666666;}
\ No newline at end of file
+.isTxt{background:#fbfbfb url(../images/inputBg.png) repeat-x left top;height:22px;line-height:22px;border:1px solid #c1c1c1;padding:0 5px;color:#666666;}
+.group_in {
+    width:60px !important;
+    height:28px !important;
+    color:#fff !important;
+    margin-right:5px !important;
+    border:none !important;
+    margin-left:0px !important;
+    box-shadow: none !important;
+
+    border-radius: 0 !important;
+    text-shadow: none !important;
+    border:1px solid #1c9ec7;
+    background:#1c9ec7;
+}
\ No newline at end of file