diff --git a/plugin/admin/app/controller/TeacherScheduleTimeController.php b/plugin/admin/app/controller/TeacherScheduleTimeController.php
index 7e33b31..506c048 100644
--- a/plugin/admin/app/controller/TeacherScheduleTimeController.php
+++ b/plugin/admin/app/controller/TeacherScheduleTimeController.php
@@ -511,7 +511,7 @@ class TeacherScheduleTimeController extends Crud
                 mkdir($save_path, 0777, true);
             }
             $writer->save($save_path . $file_name);
-s
+
             return json([
                 'code' => ResponseCode::WEB_API_SUCCESS,
                 'data' => [