diff --git a/application/api/controller/Register.php b/application/api/controller/Register.php
index 6a1c786..bebe7ba 100644
--- a/application/api/controller/Register.php
+++ b/application/api/controller/Register.php
@@ -44,7 +44,7 @@ class Register extends Api
     public function RegisterSign()
     {
         $param = $this->request->param();
-        if (empty($param['password']||$param['password'] ==""||$param['password']==null)) {
+        if (empty($param['password'])) {
             $is_user = Db::name('user')->where(['mobile' => $param['mobile']])->find();
             if ($is_user) {
                 $this->error('您已注册过,请直接登陆', 0);