diff --git a/zh-cn/application-dev/database/data-persistence-by-preferences.md b/zh-cn/application-dev/database/data-persistence-by-preferences.md
index 6557cbf7eb54e38604c38d308e4ae373e761b609..64ad6b996d234322e554d86754a6251dc714f067 100644
--- a/zh-cn/application-dev/database/data-persistence-by-preferences.md
+++ b/zh-cn/application-dev/database/data-persistence-by-preferences.md
@@ -226,7 +226,9 @@
 
 针对用户首选项开发，有以下相关实例可供参考：
 
-- [`Preferences`：首选项（ArkTS）（API9）](https://gitee.com/openharmony/applications_app_samples/tree/master/code/BasicFeature/DataManagement/Preferences)
+- [图案密码锁（ArkTS）（API9）](https://gitee.com/openharmony/applications_app_samples/tree/master/code/Solutions/Tools/PatternLock)
+
+- [首选项（ArkTS）（API9）](https://gitee.com/openharmony/applications_app_samples/tree/master/code/BasicFeature/DataManagement/Preferences)
 
 - [首选项（ArkTS）（API9）](https://gitee.com/openharmony/codelabs/tree/master/Data/Preferences)