diff --git a/app/controllers/managements_controller.rb b/app/controllers/managements_controller.rb
index 775b1947..b4e5b0b4 100644
--- a/app/controllers/managements_controller.rb
+++ b/app/controllers/managements_controller.rb
@@ -2929,7 +2929,7 @@ end
       attachment.save
       path = attachment.disk_directory
       name = attachment.disk_filename
-      if name.split(".").last == "xls" || name.split(".").last == "xlsx"
+      if name.split(".").last == "xlsx"
         # lists = readXlsData("files/baolong.xlsx")
         lists = readXlsData("files/#{path}/#{name}")
         school_id = nil
diff --git a/app/views/colleges/statistics.html.erb b/app/views/colleges/statistics.html.erb
index 15535571..0a159d2a 100644
--- a/app/views/colleges/statistics.html.erb
+++ b/app/views/colleges/statistics.html.erb
@@ -35,7 +35,7 @@
       <li>实训</li>
       <li>实训报告</li>
       <li>学员实战时间</li>
-      <li>云主机</li>
+<!--      <li>云主机</li>-->
     </div>
     <div class="base_status_value">
       <li><span><%= @teachers_count %></span>人</li>
@@ -44,7 +44,7 @@
       <li><span><%= @shixuns_count %></span>个</li>
       <li><span><%= @shixun_report_count %></span>个</li>
       <li><span data-tip-down="所有学员的实训耗时之和"><span><%= @shixun_time_sum %></span>天</span></li>
-      <li><span><%= @department.present? ? @department.host_count.to_i : @school.departments.first.try(:host_count).to_i %></span>台</li>
+<!--      <li><span><%#= @department.present? ? @department.host_count.to_i : @school.departments.first.try(:host_count).to_i %></span>台</li>-->
     </div>
   </div>
 
diff --git a/app/views/managements/import_student_accounts.js.erb b/app/views/managements/import_student_accounts.js.erb
index 7008649f..dde4caa6 100644
--- a/app/views/managements/import_student_accounts.js.erb
+++ b/app/views/managements/import_student_accounts.js.erb
@@ -1,3 +1,5 @@
 <% if @status == 1 %>
 notice_box("导入成功");
+<% else %>
+notice_box("导入失败，只支持xlsx文件");
 <% end %>
\ No newline at end of file
diff --git a/app/views/managements/update_notice.html.erb b/app/views/managements/update_notice.html.erb
index c0e1f254..adbfc43b 100644
--- a/app/views/managements/update_notice.html.erb
+++ b/app/views/managements/update_notice.html.erb
@@ -41,7 +41,7 @@
             formatTime:'H:i',
             formatDate:'Y-m-d',
             validateOnBlur:false,
-            step:30
+            step:10
         });
         $('#notice_end_time').datetimepicker({
             allowBlank:true,
@@ -50,7 +50,7 @@
             formatTime:'H:i',
             formatDate:'Y-m-d',
             validateOnBlur:false,
-            step:30
+            step:10
         });
     });
 
diff --git a/app/views/managements/users_trial.html.erb b/app/views/managements/users_trial.html.erb
index 6878c433..b872ca87 100644
--- a/app/views/managements/users_trial.html.erb
+++ b/app/views/managements/users_trial.html.erb
@@ -59,9 +59,9 @@
       <a href="javascript:void(0);" class="fl task-btn task-btn-orange ml5 mt5" onclick="$('#management_search_user').submit();">搜索</a>
       <a href="javascript:void(0);" class="fl task-btn ml5 mt5" id="clear_contents">清除</a>
     </div>
-    <!--<div class="fr">-->
-      <!--<a href="javascript:void(0);" onclick="import_student_accounts();" class="white-btn orange-btn">+&nbsp;导入学生账号</a>-->
-    <!--</div>-->
+    <div class="fr">
+      <a href="javascript:void(0);" onclick="import_student_accounts();" class="white-btn orange-btn">+&nbsp;导入学生账号</a>
+    </div>
     <div class="mt5 fr">
       <input type="checkbox" class="magic-checkbox" id="only_t">
       <label for="only_t" class="mr10 fl">只看T</label>
diff --git a/public/javascripts/educoder/edu_application.js b/public/javascripts/educoder/edu_application.js
index 47705d21..437fb319 100644
--- a/public/javascripts/educoder/edu_application.js
+++ b/public/javascripts/educoder/edu_application.js
@@ -1115,14 +1115,15 @@ function _initZoomCheck() {
     }
     var ratio = Math.round(window.devicePixelRatio * 100);
     //  A value of 1 indicates a classic 96 DPI (76 DPI on some platforms) display, while a value of 2 is expected for HiDPI/Retina displays
-    var isNormalZoom = ratio === 100 || ratio === 200
+    // 有个显示器默认值是1.25
+    var isNormalZoom = ratio === 100 || ratio === 200 || ratio === 125 
     if (!isNormalZoom) {
         suofang();
     }
 
     $(window).resize(function() {
         var ratio = Math.round(window.devicePixelRatio * 100);
-        var isNormalZoom = ratio === 100 || ratio === 200
+        var isNormalZoom = ratio === 100 || ratio === 200 || ratio === 125 
         if (!isNormalZoom) {
             suofang();
         } else {