diff --git a/app/Http/Controllers/Api/ActivityController.php b/app/Http/Controllers/Api/ActivityController.php
index e4066d1..f180fd8 100644
--- a/app/Http/Controllers/Api/ActivityController.php
+++ b/app/Http/Controllers/Api/ActivityController.php
@@ -36,7 +36,7 @@ class ActivityController extends ApiController
     {
         $activityId = $request->input('activity_id', 0);
         //添加默认活动
-        if($activityId == 0){
+        if(empty($activityId)){
             $activity = Activity::show()->sort()->first();
             $activityId = $activity?->id ?? 0;
         }