diff --git a/module/doc/view/selectlibtype.html.php b/module/doc/view/selectlibtype.html.php
index 343268b39a..aca2049cc9 100644
--- a/module/doc/view/selectlibtype.html.php
+++ b/module/doc/view/selectlibtype.html.php
@@ -1,3 +1,15 @@
+<?php
+/**
+ * The select lib type view file of doc module of ZenTaoPMS.
+ *
+ * @copyright   Copyright 2009-2021 青岛易软天创网络科技有限公司(QingDao Nature Easy Soft Network Technology Co,LTD, www.zentao.net)
+ * @license     ZPL (http://zpl.pub/page/zplv12.html)
+ * @author      Yuchun Li <liyuchun@easycorp.ltd>
+ * @package     doc
+ * @version     $Id: selectlibtype.html.php 958 2021-09-3 17:09:42Z liyuchun $
+ * @link        http://www.zentao.net
+ */
+?>
 <?php include '../../common/view/header.lite.html.php';?>
 <div id='mainContent' class='main-content'>
   <div class='center-block'>
@@ -12,11 +24,7 @@
         <td class='w-p85'><?php echo html::radio('objectType', $lang->doc->libTypeList, 'product');?></td>
       </tr>
       <tr>
-        <td colspan='3' class='text-center form-actions'>
-          <?php
-          echo html::submitButton($lang->confirm);
-          ?>
-        </td>
+        <td colspan='3' class='text-center form-actions'><?php echo html::submitButton($lang->confirm);?></td>
       </tr>
     </table>
   </form>