diff --git a/网页授权.md b/网页授权.md
index 2b842df..48dd8b1 100644
--- a/网页授权.md
+++ b/网页授权.md
@@ -28,7 +28,7 @@ $auth = new Auth($appId, $secret);
 ### 授权并返回用户
 
 ```php
-`Bag authorize($to = null, $scope = 'snsapi_userinfo', $state = 'STATE')`
+$auth->authorize($to = null, $scope = 'snsapi_userinfo', $state = 'STATE')
 ```
 
 内部逻辑：