diff --git a/pack.config.js b/pack.config.js
index b31d2d1..5cab75d 100644
--- a/pack.config.js
+++ b/pack.config.js
@@ -1,6 +1,6 @@
 /**
  *
- * @authors yutent (yutent@doui.cc)
+ * @authors yutent (yutent.io@gmail.com)
  * @date    2018-08-04 01:00:06
  */
 
@@ -12,8 +12,9 @@ const path = require('path')
 const chokidar = require('chokidar')
 const uglify = require('uglify-es')
 const chalk = require('chalk')
+const config = require('./package.json')
 const log = console.log
-const VERSION = '2.0.0'
+const VERSION = config.version
 
 const PACK_DIR = path.resolve('./dist')
 const SOURCE_DIR = path.resolve('./src/')
@@ -59,9 +60,9 @@ export default _Anot
 function comment({ touch } = {}) {
   return `/*==================================================
  * Anot ${touch ? 'touch' : 'normal'} version for future browsers
- * @authors yutent (yutent@doui.cc)
- * @date    2017-03-21 21:05:57
- * V${VERSION}
+ * @authors yutent<yutent.io@gmail.com>
+ * @date    ${new Date().format()}
+ * @version v${VERSION}
  * 
  ==================================================*/
  `
@@ -115,8 +116,8 @@ function packNoCompress(file) {
    * 打包带触摸事件的未来版的 anot
    * --------------------------------------------------------
    */
-  fs.echo(Buffer.concat([PAD_START, touchVer, PAD_END]), './dist/anot-touch.js')
-  log('%s 打包完成...', chalk.green('anot-touch.js'))
+  fs.echo(Buffer.concat([PAD_START, touchVer, PAD_END]), './dist/anot.touch.js')
+  log('%s 打包完成...', chalk.green('anot.touch.js'))
 }
 
 // 打包并压缩
@@ -144,14 +145,14 @@ function packAndCompress() {
    * 打包带触摸事件的未来版的 anot
    * --------------------------------------------------------
    */
-  log('正在打包 anot-touch.js...')
+  log('正在打包 anot.touch.js...')
   let touchVerPack = Buffer.concat([PAD_START, touchVer, PAD_END]).toString()
 
   fs.echo(
     comment({ touch: true }) + uglify.minify(touchVerPack).code,
-    './dist/anot-touch.js'
+    './dist/anot.touch.js'
   )
-  log(chalk.green('anot-touch.js 打包压缩完成!'))
+  log(chalk.green('anot.touch.js 打包压缩完成!'))
 }
 
 let args = process.argv.slice(2)
diff --git a/package.json b/package.json
index c27580b..bcff5a4 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "anot",
-  "version": "2.2.2",
+  "version": "2.2.3",
   "description": "Anot - 迷你mvvm框架",
   "main": "dist/anot.js",
   "files": ["dist"],
diff --git a/readme.md b/readme.md
index 697e320..7715029 100644
--- a/readme.md
+++ b/readme.md
@@ -16,7 +16,7 @@ npm run prod
 ```
 执行完, 会打包为2个版本, 分别是
 - anot.js  普通版(需要支持es6 module的现代浏览器)
-- anot-touch.js  带触摸的版本(需要支持es6 module的现代浏览器)
+- anot.touch.js  带触摸事件的版本(需要支持es6 module的现代浏览器)
 
 
 ### 文档:
diff --git a/src/06-vm.js b/src/06-vm.js
index 9818d0a..b840eb1 100644
--- a/src/06-vm.js
+++ b/src/06-vm.js
@@ -264,8 +264,8 @@ function observeObject(source, options) {
             return (old = value.get.call(this))
           },
           set: function(x) {
-            var older = old,
-              newer
+            var older = old
+            var newer
             value.set.call(this, x)
             newer = this[key]
             if (this.$fire && newer !== older) {