* **[选择用户文件](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/select-user-file)**
* **[保存用户文件](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/save-user-file)**
* **[授权持久化](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/file-persistpermission)**
* **[授权持久化(C/C++)](https://developer.huawei.com/consumer/cn/doc/harmonyos-guides/native-fileshare-guidelines)**