diff --git a/src/Console/Console.php b/src/Console/Console.php
index c56179ab..2d8b89c0 100644
--- a/src/Console/Console.php
+++ b/src/Console/Console.php
@@ -51,6 +51,7 @@ public static function isWin()
      */
     public function log($str, $level = 'INFO', $log = false)
     {
+        $str = $this->vbot->lang->get($str);
         if ($this->isOutput()) {
             if ($log && in_array($level, array_keys(Logger::getLevels()))) {
                 $this->vbot->log->log($level, $str);
diff --git a/src/Core/Server.php b/src/Core/Server.php
index 6975ba33..95a324b5 100644
--- a/src/Core/Server.php
+++ b/src/Core/Server.php
@@ -319,4 +319,11 @@ protected function generateSyncKey($result, $first)
 
         $this->vbot->config['server.syncKeyStr'] = implode('|', $syncKey);
     }
+    /**
+     * logout wechat
+     */
+    protected function logout(){
+        $url = 'https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxlogout?redirect=1&type=0&skey='.$this->vbot->config['server.skey'];
+        $this->vbot->http->post($url, ['sid'=>$this->vbot->config['server.sid'], 'uin'=>$this->vbot->config['server.uin']]);
+    }
 }
diff --git a/src/Foundation/ServiceProviders/LangServiceProvider.php b/src/Foundation/ServiceProviders/LangServiceProvider.php
new file mode 100644
index 00000000..edac3048
--- /dev/null
+++ b/src/Foundation/ServiceProviders/LangServiceProvider.php
@@ -0,0 +1,20 @@
+<?php
+
+namespace Hanson\Vbot\Foundation\ServiceProviders;
+
+use Hanson\Vbot\Foundation\ServiceProviderInterface;
+use Hanson\Vbot\Foundation\Vbot;
+use Hanson\Vbot\Support\Lang;
+
+class LangServiceProvider implements ServiceProviderInterface
+{
+    /**
+     * @param \Hanson\Vbot\Foundation\Vbot $vbot
+     */
+    public function register(Vbot $vbot)
+    {
+        $vbot->singleton('lang', function () use ($vbot) {
+            return new Lang($vbot);
+        });
+    }
+}
diff --git a/src/Foundation/Vbot.php b/src/Foundation/Vbot.php
index b9638865..a4f45877 100644
--- a/src/Foundation/Vbot.php
+++ b/src/Foundation/Vbot.php
@@ -67,6 +67,7 @@ class Vbot extends Container
         ServiceProviders\ContactServiceProvider::class,
         ServiceProviders\ApiServiceProvider::class,
         ServiceProviders\ExtensionServiceProvider::class,
+        ServiceProviders\LangServiceProvider::class
     ];
 
     public function __construct(array $config)
diff --git a/src/Languages/zh_CN.php b/src/Languages/zh_CN.php
new file mode 100644
index 00000000..d0fa73c8
--- /dev/null
+++ b/src/Languages/zh_CN.php
@@ -0,0 +1,24 @@
+<?php
+return [
+    'dump file success.'                    => '下载到文件失败。',
+    'checkSync no response'                 => 'checkSync接口无返回信息。',
+    'cleaning useless cookies.'             => '正在清理无用的Cookie信息。',
+    'please scan the qrCode with wechat.'   => '请使用手机微信扫描二维码。',
+    'please confirm login in wechat.'       => '请在手机微信上确认登录。',
+    'login time out!'                       => '登录超时！',
+    'current session:'                      => '当前Session ID：',
+    'init begin.'                           => '开始初始化。',
+    'init success.'                         => '初始化完成。',
+    'init contacts begin.'                  => '开始初始化联系人列表。',
+    'vbot exit normally.'                   => 'VBOT已正常退出。',
+    'current user\'s nickname:'             => '当前登录账户的昵称：',
+    'current user\'s username:'             => '当前登录账户的用户名：',
+    'current user\'s uin:'                  => '当前登录账户的UIN：',
+    'Argument pass error.'                  => '缺少必要参数。',
+    'Ticket error.'                         => 'pass_ticket错误。',
+    'Logout.'                               => '微信已退出。',
+    'Cookies invalid.'                      => 'Cookie验证错误。',
+    'Api frequency.'                        => 'API调用频繁。',
+    'download file failed.'                 => '下载文件失败。',
+    'emoticon path not set.'                => '未设置表情库路径。'
+];
diff --git a/src/Support/Lang.php b/src/Support/Lang.php
new file mode 100644
index 00000000..15c4f8e0
--- /dev/null
+++ b/src/Support/Lang.php
@@ -0,0 +1,22 @@
+<?php
+namespace Hanson\Vbot\Support;
+use Hanson\Vbot\Foundation\Vbot;
+class Lang{
+    private $languages;
+    protected $vbot;
+    public function __construct(Vbot $vbot){
+        $this->vbot = $vbot;
+    }
+    public function get($msg){
+        if (empty($this->languages)){
+            $langFilePath = dirname(__DIR__).'/Languages/'.$this->vbot->config['lang'].'.php';
+            if(file_exists($langFilePath)){
+                $this->languages = require_once $langFilePath;
+            }
+        }
+        return isset($this->languages[$msg])?$this->languages[$msg]:$msg;
+    }
+    public function setType($type){
+        $this->type = $type;
+    }
+}