diff --git a/plugins/Html.php b/plugins/Html.php
new file mode 100644
index 0000000..c67646a
--- /dev/null
+++ b/plugins/Html.php
@@ -0,0 +1,31 @@
+<?php
+/**
+ * 常用的处理HTML的方法
+ */
+Class Html {
+    //获取js、css文件的修改时间作版本号
+    public static function getStaticFileVersion($filename, $type = 'css') {
+        $ver = 0;
+        $filepath = '';
+
+        switch ($type) {
+            case 'css':
+                $filepath = __DIR__ . '/../www/css/' . $filename;
+                break;
+            
+            default:
+                $filepath = __DIR__ . '/../www/js/' . $filename;
+                break;
+        }
+
+        if (!empty($filepath) && file_exists($filepath)) {
+            $fp = fopen($filepath, 'r');
+            $fstat = fstat($fp);
+            fclose($fp);
+
+            $ver = $fstat['mtime'];
+        }
+
+        return $ver;
+    }
+}
diff --git a/themes/googleimage/views/layout/main.php b/themes/googleimage/views/layout/main.php
index 8d57334..b4d850b 100644
--- a/themes/googleimage/views/layout/main.php
+++ b/themes/googleimage/views/layout/main.php
@@ -1,4 +1,8 @@
-<!DocType html>
+<?php
+//常用方法
+require_once __DIR__ . '/../../../../plugins/Html.php';
+
+?><!DocType html>
 <html>
 <head>
 <meta charset="utf-8">
@@ -9,7 +13,7 @@
 <!--for theme googleimage-->
 <link href="/css/blueimp-gallery.min.css" rel="stylesheet">
 <link href="/css/github-markdown-dark.css" rel="stylesheet">
-<link href="/css/googleimage.css?v<?=time()?>" rel="stylesheet">
+<link href="/css/googleimage.css?v<?=Html::getStaticFileVersion('googleimage.css', 'css')?>" rel="stylesheet">
 <style>
 <?php if (!empty(FSC::$app['config']['googleimage']['imageHeight'])) { ?>
     .img-item img{height: <?php echo FSC::$app['config']['googleimage']['imageHeight']; ?>px;}
@@ -93,6 +97,6 @@ eof;
     <script src="/js/main.js?v.1.0"></script>
     <!--for theme googleimage-->
     <script src="/js/blueimp-gallery.min.js"></script>
-    <script src="/js/googleimage.js?v<?=time()?>"></script>
+    <script src="/js/googleimage.js?v<?=Html::getStaticFileVersion('googleimage.js', 'js')?>"></script>
 </body>
 </html>
