diff --git a/module/common/model.php b/module/common/model.php
index f9134dbd3e..6644929fae 100644
--- a/module/common/model.php
+++ b/module/common/model.php
@@ -3395,6 +3395,27 @@ class commonModel extends model
             echo '<script>$("#userDropDownMenu").on("click", function(){$(this).removeClass("dropdown-hover");});$("#userDropDownMenu").on("hover", function(){$(this).next().removeClass("open");$(this).addClass("dropdown-hover");});</script>';
         }
     }
+
+    /**
+     * 打印返回链接。
+     * Print back link.
+     *
+     * @param  string $backLink
+     * @param  string $class
+     * @param  string $misc
+     * @static
+     * @access public
+     * @return void
+     */
+    static public function printBack($backLink, $class = '', $misc = '')
+    {
+        global $lang;
+        if(isonlybody()) return false;
+
+        if(empty($class)) $class = 'btn';
+        $title = $lang->goback . $lang->backShortcutKey;
+        echo html::a($backLink, '<i class="icon-goback icon-back"></i> ' . $lang->goback, '', "id='back' class='{$class}' title={$title} $misc");
+    }
 }
 
 class common extends commonModel