diff --git a/apps/home/controller/TagController.php b/apps/home/controller/TagController.php
index 84db4df..4bd2c0c 100644
--- a/apps/home/controller/TagController.php
+++ b/apps/home/controller/TagController.php
@@ -29,10 +29,11 @@ public function index()
     {
         // 在非兼容模式接受地址第二参数值
         if (defined('RVAR')) {
-            $_GET['tag'] = RVAR;
+            $_GET['tag'] = constant('\RVAR');
         }
         
-        if (! get('tag')) {
+        $tag = get('tag', 'vars');
+        if (! $tag) {
             _404('您访问的页面不存在，请核对后重试！');
         }
         
@@ -42,9 +43,9 @@ public function index()
         }
         $content = parent::parser($this->htmldir . $tagstpl); // 框架标签解析
         $content = $this->parser->parserBefore($content); // CMS公共标签前置解析
-        $content = $this->parser->parserPositionLabel($content, 0, '相关内容', Url::home('tag/' . get('tag'))); // CMS当前位置标签解析
-        $content = $this->parser->parserSpecialPageSortLabel($content, - 2, '相关内容', Url::home('tag/' . get('tag'))); // 解析分类标签
+        $content = $this->parser->parserPositionLabel($content, 0, '相关内容', Url::home('tag/' . $tag)); // CMS当前位置标签解析
+        $content = $this->parser->parserSpecialPageSortLabel($content, - 2, '相关内容', Url::home('tag/' . $tag)); // 解析分类标签
         $content = $this->parser->parserAfter($content); // CMS公共标签后置解析
         $this->cache($content, true);
     }
-}
\ No newline at end of file
+}