diff --git a/readme.md b/readme.md
index ff68513..fdc8559 100644
--- a/readme.md
+++ b/readme.md
@@ -36,6 +36,7 @@
  + GoPath[当前path,请使用location.pathname]
  + GoHtmlSrc[当前html原始代码,请不要使用]
  + GoParam[请求参数,map形式]
+ + GoExtData[扩展数据,例如获取cookie,GoExtData['cookie'] ]
  
 ## 扩展标签