diff --git a/digital_doctor/application/api/controller/Usersty.php b/digital_doctor/application/api/controller/Usersty.php
index 7056f62..1038aa3 100644
--- a/digital_doctor/application/api/controller/Usersty.php
+++ b/digital_doctor/application/api/controller/Usersty.php
@@ -61,7 +61,7 @@ class Usersty extends BaseHttpApi
                 ->where('username',$username)
                 ->find();
             if(empty($user)){
-                return Tools::set_fail('参数错误');
+                return Tools::set_fail('用户不存在');
             }
             if($password != $user['password']){
                 return Tools::set_fail('密码错误');