diff --git a/zh-cn/application-dev/reference/apis/js-apis-settings.md b/zh-cn/application-dev/reference/apis/js-apis-settings.md
index 1fd15c0f09c8801a2b822ac7778643cb117f5ff4..3c92903dd4b91ad78982c2693358ac314e7338dd 100644
--- a/zh-cn/application-dev/reference/apis/js-apis-settings.md
+++ b/zh-cn/application-dev/reference/apis/js-apis-settings.md
@@ -328,6 +328,8 @@ import featureAbility from '@ohos.ability.featureAbility';
 //更新数据项亮度的值（该数据项在数据库中已存在，故setValue方法将更新该数据项的值）
 let uri = settings.getUriSync(settings.display.SCREEN_BRIGHTNESS_STATUS);
 let helper = featureAbility.acquireDataAbilityHelper(uri);
+//@ts-ignore
+//此处数据项值的类型为string
 settings.setValue(helper, settings.display.SCREEN_BRIGHTNESS_STATUS, '100', (status) => {
     console.log('Callback return whether value is set.');
 });
@@ -365,6 +367,8 @@ import featureAbility from '@ohos.ability.featureAbility';
 //更新数据项亮度的值（该数据项在数据库中已存在，故setValue方法将更新该数据项的值）
 let uri = settings.getUriSync(settings.display.SCREEN_BRIGHTNESS_STATUS);
 let helper = featureAbility.acquireDataAbilityHelper(uri);
+//@ts-ignore
+//此处数据项值的类型为string
 settings.setValue(helper, settings.display.SCREEN_BRIGHTNESS_STATUS, '100').then((status) => {
     console.log('Callback return whether value is set.');
 });