diff --git a/application/common.php b/application/common.php
old mode 100755
new mode 100644
index faeb9760a3ba3b296d487ab3ba0aa8abe34ecfe2..862f55df900d18c1688e36cbe8550808aadffd29
--- a/application/common.php
+++ b/application/common.php
@@ -22,6 +22,17 @@ if (!function_exists('__'))
             array_shift($vars);
             $lang = '';
         }
+
+        //检测用户是否自主选择语言
+        if(!think\Cookie::get('?think_var'))
+        {
+            //用户没有自主切换语言，自动对浏览器进行语言检测
+            $lang = think\Lang::detect();
+
+            //语言切换cookie赋值
+            think\Cookie::set('think_var',$lang);
+        }
+        
         return think\Lang::get($name, $vars, $lang);
     }