diff --git a/application/api/controller/Sign.php b/application/api/controller/Sign.php
index cb21a87..30ca34c 100644
--- a/application/api/controller/Sign.php
+++ b/application/api/controller/Sign.php
@@ -12,6 +12,9 @@ class Sign extends BaseCom
     {
         $sign_id = input('sign_id', 0);//场次id
         $room_sign = db::name('vs_room_sign')->where('id', $sign_id)->field('sign_user_id,room_id')->find();
+        if (!$room_sign) {
+            return v(0, '参数错误');
+        }
         //获取出价最高用户
         $sign_user = db::name('vs_user_sign_auction')->where(['room_id' => $room_sign['room_id'],'sign_time' => $sign_id,'type' => 0])->order('sign_value desc')->field('id,user_id,sign_value')->find();
         if($sign_user){