u

app/Http/Controllers/Controller.php

@@ -84,11 +84,11 @@ class Controller extends BaseController
      * @apiVersion 1.0.0
      */
 
-    protected $lang = 'en';
+    protected $lang = 'zh-CN';
 
     public function __construct()
     {
-        $lang = request()->input('lang', 'en');
+        $lang = request()->input('lang', 'zh-CN');
         App::setLocale($lang);
         $this->lang = $lang;
     }