bug修改

@@ -800,7 +800,8 @@ class User extends Api
         	$info->getRelation('order')->visible(['id','order_sn','pay_time']);
         }
         if($info->getRelation('withdraw')){
-        	$info->getRelation('withdraw')->payment_time = date('Y/m/d/H:i',$info->getRelation('withdraw')->payment_time);
+            $payment_time = empty($info->getRelation('withdraw')->payment_time) ? $info->getRelation('withdraw')->createtime : $info->getRelation('withdraw')->payment_time;
+        	$info->getRelation('withdraw')->payment_time = date('Y/m/d/H:i',$payment_time);
         	$info->getRelation('withdraw')->visible(['id','order_sn','payment_time']);
         }
         $this->success('成功',$info);