diff --git a/index.js b/index.js
index 5770fdf..90ac99f 100644
--- a/index.js
+++ b/index.js
@@ -8,8 +8,14 @@ import STATUS_TEXT from './lib/http-code.js'
 import { serialize } from './lib/cookie.js'
 
 export default class Response {
+  
+  rendered = false
+
   constructor(req, res) {
-    this.origin = { req, res }
+
+    this.#req = req
+    this.#res = res
+
     this.rendered = !!res.rendered
   }
 
diff --git a/lib/cookie.js b/lib/cookie.js
index 9961225..e6c84a9 100644
--- a/lib/cookie.js
+++ b/lib/cookie.js
@@ -3,16 +3,16 @@
  * @date 2020/09/20 15:08:50
  */
 
-var KEY_REGEXP = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/
-// var SPLIT_REGEXP = /; */
-var encode = encodeURIComponent
-// var decode = decodeURIComponent
+const KEY_REGEXP = /^[\u0009\u0020-\u007e\u0080-\u00ff]+$/
+// const SPLIT_REGEXP = /; */
+const encode = encodeURIComponent
+// const decode = decodeURIComponent
 
 /**
  * [serialize 序列化对象]
  */
 export function serialize(key, val, opts) {
-  var pairs = []
+  let pairs = []
   if (!KEY_REGEXP.test(key)) {
     return ''
   }
diff --git a/package.json b/package.json
index debfb0f..d51ff2f 100644
--- a/package.json
+++ b/package.json
@@ -1,11 +1,15 @@
 {
   "name": "@gm5/response",
-  "version": "1.3.1",
+  "version": "2.0.0",
   "type": "module",
   "description": "对Http的response进一步封装, 提供常用的API",
   "main": "index.js",
   "author": "yutent",
-  "keywords": ["fivejs", "response", "http"],
+  "keywords": [
+    "fivejs",
+    "response",
+    "http"
+  ],
   "dependencies": {
     "iofs": "^1.5.0"
   },