diff --git a/src/main/ets/utils/PickerDateTimeHelper.ets b/src/main/ets/utils/PickerDateTimeHelper.ets
index 522f51b..790570a 100644
--- a/src/main/ets/utils/PickerDateTimeHelper.ets
+++ b/src/main/ets/utils/PickerDateTimeHelper.ets
@@ -25,7 +25,9 @@ function dateDialogBuilder(option: DateDialogOptions, dialogTag: string) {
   })
 }
 
-
+/**
+ * 时间选择相关工具
+ */
 export class PickerDateTimeHelper {
   private constructor() {
   }