diff --git a/app/helpers/courses_helper.rb b/app/helpers/courses_helper.rb
index a862753ef..411de1dcf 100644
--- a/app/helpers/courses_helper.rb
+++ b/app/helpers/courses_helper.rb
@@ -561,12 +561,13 @@ module CoursesHelper
   def course_in_current_or_next_term course
     is_current_term = false
     is_next_term = false
-    if course.time == Time.now.year && course.term == cur_course_term
+    year_now = Time.now.month < 3 ? Time.now.year - 1:Time.now.year
+    if course.time == year_now && course.term == cur_course_term
       is_current_term = true
     end
-    if cur_course_term == "秋季学期" && course.time == (Time.now.year + 1) && course.term == "春季学期"
+    if cur_course_term == "秋季学期" && course.time == (year_now + 1) && course.term == "春季学期"
       is_next_term = true
-    elsif cur_course_term == "春季学期" && course.time == Time.now.year && course.term == "秋季学期"
+    elsif cur_course_term == "春季学期" && course.time == year_now && course.term == "秋季学期"
       is_next_term = true
     end
     is_current_term || is_next_term
diff --git a/app/models/contest.rb b/app/models/contest.rb
index ad54e8fb4..650e363a8 100644
--- a/app/models/contest.rb
+++ b/app/models/contest.rb
@@ -15,7 +15,8 @@ class Contest < ActiveRecord::Base
   has_many :praise_tread, as: :praise_tread_object, dependent: :destroy
   has_many :contestnotifications, :dependent => :destroy, :include => :author
 
-  
+
+
 
   acts_as_attachable
 
diff --git a/app/views/courses/_member_list.html.erb b/app/views/courses/_member_list.html.erb
index 41b4f41e7..dd543ec2c 100644
--- a/app/views/courses/_member_list.html.erb
+++ b/app/views/courses/_member_list.html.erb
@@ -56,24 +56,36 @@
                 </a>
                 <ul style="margin-left: 15px">
                   <% if @canShowCode %>
-                      <li>
-                        <%= l(:label_bidding_user_studentname) %> :
-                        <%= link_to member.user.show_name, user_path(member.user) %>
-                      </li>
-                      </br>
+                      <% if member.user.show_name == '' && member.user.user_extensions.student_id == '' %>
+                          <li>
+                            <%= l(:label_username)%>
+                            <%= link_to(member.user.name, user_path(member.user)) %>
+                          </li>
+                      <% else %>
+                          <% unless member.user.show_name == ''%>
+                              <li>
+                                <%= l(:label_bidding_user_studentname) %> :
+                                <%= link_to member.user.show_name, user_path(member.user) %>
+                              </li>
+                              </br>
+                          <% end %>
+                          <% unless member.user.user_extensions.student_id == '' %>
+                              <li>
+                                <%= l(:label_bidding_user_studentcode) %> :
+                                <%= link_to member.user.user_extensions.student_id, user_path(member.user) %>
+                              </li>
+                          <% end %>
+                      <% end %>
                       <%#= content_tag "li", "#{l(:label_bidding_user_studentname)}#{' : '}"link_to(member.user.show_name, user_path(member.user)) %>
                   <% else %>
-                      <%= content_tag "li", link_to(member.user.name, user_path(member.user)) %>
-                  <% end %>
+                      <li>
+                        <%= l(:label_username)%>
+                        <%= link_to(member.user.name, user_path(member.user)) %>
+                      </li>
+                <% end %>
                   <!--teacher's code disapeared  moified by huang-->
 
-                  <% if @canShowCode  %>
-                      <li>
-                        <%= l(:label_bidding_user_studentcode) %> :
-                        <%= link_to member.user.user_extensions.student_id, user_path(member.user) %>
-                      </li>
-                      <%#= content_tag "li", "#{l(:label_bidding_user_studentcode)}#{' : '}#{member.user.user_extensions.student_id}", :style=> "color:#1c9ec7;" %>
-                  <% end %>
+
                 </ul>
                 <% if @subPage_title == l(:label_student_list) %>
                     <%= link_to format("%0.2f",member.score.nil? ? 0 : member.score.to_s), {
diff --git a/app/views/courses/_member_list_detail.html.erb b/app/views/courses/_member_list_detail.html.erb
index f37067cb5..bc6cbd242 100644
--- a/app/views/courses/_member_list_detail.html.erb
+++ b/app/views/courses/_member_list_detail.html.erb
@@ -7,24 +7,36 @@
       <a href="#" class="st_img" style="float:left;"> <%= member.user.nil? ? '' : (image_tag(url_to_avatar(member.user), :width => 40, :height => 40))  %></a>
       <ul style="margin-left: 15px">
         <% if @canShowCode %>
-            <li>
-              <%= l(:label_bidding_user_studentname) %> :
-              <%= link_to member.user.show_name, user_path(member.user) %>
-
-            </li> </br>
+            <% if member.user.show_name == '' && member.user.user_extensions.student_id == '' %>
+                <li>
+                  <%= l(:label_username)%>
+                  <%= link_to(member.user.name, user_path(member.user)) %>
+                </li>
+            <% else %>
+                <% unless member.user.show_name == ''%>
+                    <li>
+                      <%= l(:label_bidding_user_studentname) %> :
+                      <%= link_to member.user.show_name, user_path(member.user) %>
+                    </li>
+                    </br>
+                <% end %>
+                <% unless member.user.user_extensions.student_id == '' %>
+                    <li>
+                      <%= l(:label_bidding_user_studentcode) %> :
+                      <%= link_to member.user.user_extensions.student_id, user_path(member.user) %>
+                    </li>
+                <% end %>
+            <% end %>
             <%#= content_tag "li", "#{l(:label_bidding_user_studentname)}#{' : '}"link_to(member.user.show_name, user_path(member.user)) %>
         <% else %>
-            <%= content_tag "li", link_to(member.user.name, user_path(member.user)) %>
+            <li>
+              <%= l(:label_username)%>
+              <%= link_to(member.user.name, user_path(member.user)) %>
+            </li>
         <% end %>
         <!--teacher's code disapeared  moified by huang-->
 
-        <% if @canShowCode  %>
-            <li>
-              <%= l(:label_bidding_user_studentcode) %> :
-              <%= link_to member.user.user_extensions.student_id, user_path(member.user) %>
-            </li>
-            <%#= content_tag "li", "#{l(:label_bidding_user_studentcode)}#{' : '}#{member.user.user_extensions.student_id}", :style=> "color:#1c9ec7;" %>
-        <% end %>
+
       </ul>
       <% if @subPage_title == l(:label_student_list) %>
           <%= link_to format("%0.2f",member.score.to_s), {
diff --git a/app/views/layouts/base_courses.html.erb b/app/views/layouts/base_courses.html.erb
index 387a0e4cf..f0204f7ee 100644
--- a/app/views/layouts/base_courses.html.erb
+++ b/app/views/layouts/base_courses.html.erb
@@ -47,12 +47,36 @@
       </td>
       <td rowspan="2" width="250px">
         <div class="top-content-search">
+          <script type="text/javascript">
+              function regexName()
+              {
+                  var name = $.trim($("#name").val());
+                  if(name.length == 0)
+                  {
+                      $("#project_name_span").text("<%= l(:label_search_conditions_not_null) %>");
+                      $("#project_name_span").css('color','#ff0000');
+                      $("#project_name_span").focus();
+                      return false;
+                  }
+                  else
+                  {
+                      $("#project_name_span").text("");
+                      return true;
+                  }
+              }
 
+              function submitSerch()
+              {
+                  if(regexName()){$("#course_search_form").submit();}
+              }
+          </script>
           <%= form_tag({:controller => 'courses', :action => 'search'},:id => "course_search_form", :method => :get) do %>
               <%= text_field_tag 'name', params[:name], :size => 20, :style => "float:left" %>
-              <a href="#" onclick="$('#course_search_form').submit();" class="ButtonColor m3p10"  style="float:left;padding-top: 3px; margin: 0px;padding-bottom:0px;" >
+              <a href="#" onclick="submitSerch();" class="ButtonColor m3p10"  style="float:left;padding-top: 3px; margin: 0px;padding-bottom:0px;" >
                 <%= l(:label_search)%>
               </a>
+              <br />
+              <span id="project_name_span" style="float: left"></span>
               <%#= submit_tag l(:label_search), :class => "ButtonColor m3p10", :name => nil, :style => "float:left;padding-top: 3px; margin: 0px;padding-bottom:0px;" %>
           <% end %>
         </div>
diff --git a/app/views/layouts/base_newcontest.html.erb b/app/views/layouts/base_newcontest.html.erb
index 8cae51063..0d234a69c 100644
--- a/app/views/layouts/base_newcontest.html.erb
+++ b/app/views/layouts/base_newcontest.html.erb
@@ -70,7 +70,7 @@
                                                 <%= l(:label_search)%>
                                               </a>
                                                 <br />
-                                              <span id="contest_name_span_head"></span>
+                                              <span id="contest_name_span_head" style="float: left"></span>
                                             <% end %>
                                         </div>
                                     </td>
diff --git a/app/views/layouts/base_projects.html.erb b/app/views/layouts/base_projects.html.erb
index 3937c1822..67e4da0f4 100644
--- a/app/views/layouts/base_projects.html.erb
+++ b/app/views/layouts/base_projects.html.erb
@@ -71,7 +71,7 @@
                                                     <%= l(:label_search)%>
                                                 </a>
                                                 <br />
-                                                <span id="project_name_span"></span>
+                                                <span id="project_name_span" style="float: left"></span>
 											<% end %>
 										</div>
 									</td>
diff --git a/app/views/layouts/mailer.html.erb b/app/views/layouts/mailer.html.erb
index aa43b9194..b80206728 100644
--- a/app/views/layouts/mailer.html.erb
+++ b/app/views/layouts/mailer.html.erb
@@ -39,7 +39,7 @@ a:hover.mail_reply{ background:#06a9bc; text-decoration:none;}
         </div><!--mail_head end-->
         <%= yield %>
         <hr />
-        <div class="mail_foot"><%= link_to("退订该邮件？", @user_url)  %> </div><!--mail_foot end-->
+      <span class="footer"><%= Redmine::WikiFormatting.to_html(Setting.text_formatting, Setting.emails_footer).html_safe %></span><!--mail_foot end-->
     </div>
   </div>
 </body>
diff --git a/app/views/mailer/issue_add.html.erb b/app/views/mailer/issue_add.html.erb
index f51dad121..4db0113b9 100644
--- a/app/views/mailer/issue_add.html.erb
+++ b/app/views/mailer/issue_add.html.erb
@@ -5,4 +5,5 @@
 
 
 </div>
+<div class="mail_foot"><%= link_to("退订该邮件？", @user_url)  %> </div>
 
diff --git a/app/views/mailer/issue_add.text.erb b/app/views/mailer/issue_add.text.erb
index b50a39260..31d9632db 100644
--- a/app/views/mailer/issue_add.text.erb
+++ b/app/views/mailer/issue_add.text.erb
@@ -1,2 +1,3 @@
 
 <%= render :partial => 'issue', :formats => [:text], :locals => { :issue => @issue, :issue_url => @issue_url } %>
+<%= link_to("退订该邮件？", @user_url)  %>
\ No newline at end of file
diff --git a/app/views/mailer/issue_edit.html.erb b/app/views/mailer/issue_edit.html.erb
index 3cbd1b02a..0c46b5e60 100644
--- a/app/views/mailer/issue_edit.html.erb
+++ b/app/views/mailer/issue_edit.html.erb
@@ -11,3 +11,5 @@
 <span style="float: left"><strong><%= l(:field_content)%>：</strong></span><span style="float: left; width: 540px"><%= @journal.notes %></span>
 <hr />
 <%= render :partial => 'issue', :formats => [:html], :locals => { :issue => @issue, :issue_url => @issue_url } %>
+<div class="mail_foot"><%= link_to("退订该邮件？", @user_url)  %> </div>
+
diff --git a/app/views/mailer/issue_edit.text.erb b/app/views/mailer/issue_edit.text.erb
index 5b93b6fe0..70e4186c4 100644
--- a/app/views/mailer/issue_edit.text.erb
+++ b/app/views/mailer/issue_edit.text.erb
@@ -12,3 +12,5 @@
 <% end -%>
 ----------------------------------------
 <%= render :partial => 'issue', :formats => [:text], :locals => { :issue => @issue, :issue_url => @issue_url } %>
+
+<%= link_to("退订该邮件？", @user_url)  %>
\ No newline at end of file
diff --git a/app/views/my/account.html.erb b/app/views/my/account.html.erb
index 597229369..2621d4fa3 100644
--- a/app/views/my/account.html.erb
+++ b/app/views/my/account.html.erb
@@ -242,7 +242,7 @@
 
       <div id="WOpenWindow">
         <a class="modal_close" href="#"></a>
-        <h2><%= l(:lable_school_list)%></h2>
+        <h2 style="margin: 10px"><%= l(:lable_school_list)%></h2>
         &nbsp;&nbsp;
         <div class="pcontent">
           <ul id="provincelist" class="school_list">
diff --git a/app/views/welcome/_search_course.html.erb b/app/views/welcome/_search_course.html.erb
index 895f696fb..c3bbd46d8 100644
--- a/app/views/welcome/_search_course.html.erb
+++ b/app/views/welcome/_search_course.html.erb
@@ -47,7 +47,7 @@ form #search_type{
 <%#完了把上面东西放到 .css 里%>
 </style>
 <%= form_tag({controller: :welcome, action: :search }, method: :get) do %>
-<div class="project-search" style="float: right">
+<div class="project-search" style="float: right; width: 260px">
 	<div class='search_widget'>
 		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字',  :size => 27, style: "float:left"  %>
 		<%= select_tag(:search_type, options_for_select(select_option), :style => "float:right" ) %>
diff --git a/app/views/welcome/_search_project.html.erb b/app/views/welcome/_search_project.html.erb
index 6a77861b9..1b3552c86 100644
--- a/app/views/welcome/_search_project.html.erb
+++ b/app/views/welcome/_search_project.html.erb
@@ -86,7 +86,7 @@ form #search_by
   }
 </script>
 <%= form_tag({controller: :welcome, action: :search }, method: :get) do %>
-<div class="project-search" style="float: right">
+<div class="project-search" style="float: right; width: 260px">
 	<div class='search_widget' >
 
 		<%= text_field_tag :q, nil, placeholder:'请输入要搜索的关键字', style:"float:left" %>
diff --git a/config/locales/zh.yml b/config/locales/zh.yml
index 061baa932..f36174cf9 100644
--- a/config/locales/zh.yml
+++ b/config/locales/zh.yml
@@ -2110,7 +2110,7 @@ zh:
   excel_homework_list: 作品列表
   excel_been_rated: 已评
   excel_not_rated: 未评
-  label_export_excel: 导出Excel
+  label_export_excel: 导出列表
 
   label_softapplication: 应用软件
   label_attending_contest: 参加竞赛
diff --git a/public/stylesheets/course_group.css b/public/stylesheets/course_group.css
index 71f870a9a..b6c7f4f8c 100644
--- a/public/stylesheets/course_group.css
+++ b/public/stylesheets/course_group.css
@@ -41,8 +41,9 @@ input.f_2 {
 .st_search{ margin:10px 0;}
 .st_search span{ font-size:14px; font-weight:bold; color:#606060; margin-right:35px;}
 .st_search input{ border:1px solid #1c9ec7;  height:20px;  width:200px;}
- a:hover.xls{ background: url('../images/icon_excel.gif') no-repeat scroll 1px 50% transparent !important;
-    padding: 2px 0px 3px 16px;
+ a:hover.xls{ /*background: url('../images/icon_excel.gif') no-repeat scroll 1px 50% transparent !important;*/
+    /*padding: 2px 0px 3px 16px;*/
+    background:#ffffff !important;
     font-family:微软雅黑 !important;
     font-size: 12px !important;
     color: #136b3b !important;