diff --git a/app/Http/Controllers/Admin/OtherController.php b/app/Http/Controllers/Admin/OtherController.php
index e079fb2..d6ddab5 100755
--- a/app/Http/Controllers/Admin/OtherController.php
+++ b/app/Http/Controllers/Admin/OtherController.php
@@ -679,7 +679,8 @@ class OtherController extends CommonController
         $course_type_id = request('course_type_id', '');
         if ($course_type_id) {
             // 部分
-            $course_type_id = explode(',', $course_type_id);
+           // $course_type_id = explode(',', $course_type_id);
+            $course_type_id = [];
         } else {
             // 全部
             $course_type_id = CourseType::pluck('id')->toArray();