未验证 提交 48bc9862 编写于 作者: O openharmony_ci 提交者: Gitee

!11541 [翻译完成】#I5U1KI

Merge pull request !11541 from Annie_wang/PR10268
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- [@ohos.document](js-apis-document.md)
- [@ohos.environment](js-apis-environment.md)
- [@ohos.data.fileAccess](js-apis-fileAccess.md)
- [@ohos.fileExtensionInfo](js-apis-fileExtensionInfo.md)
- [@ohos.fileio](js-apis-fileio.md)
- [@ohos.filemanagement.userfile_manager](js-apis-userfilemanager.md)
- [@ohos.multimedia.medialibrary](js-apis-medialibrary.md)
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# User File Extension Info
The **fileExtensionInfo** module defines attributes in **RootInfo** and **FileInfo** of the user file access and management module.
>**NOTE**
>
>- The initial APIs of this module are supported since API version 9. Newly added APIs will be marked with a superscript to indicate their earliest API version.
>- The APIs provided by this module are system APIs.
## Modules to Import
```js
import fileExtensionInfo from '@ohos.fileExtensionInfo';
```
## fileExtensionInfo.DeviceType
Defines the values of **deviceType** used in **RootInfo**.
**System capability**: SystemCapability.FileManagement.UserFileService
| Name| Value| Description|
| ----- | ------ | ------ |
| DEVICE_LOCAL_DISK | 1 | Local disk.|
| DEVICE_SHARED_DISK | 2 | Shared disk.|
| DEVICE_SHARED_TERMINAL | 3 | Distributed network device.|
| DEVICE_NETWORK_NEIGHBORHOODS | 4 | Network neighbor device.|
| DEVICE_EXTERNAL_MTP | 5 | MTP device.|
| DEVICE_EXTERNAL_USB | 6 | USB device.|
| DEVICE_EXTERNAL_CLOUD | 7 | Cloud disk.|
## fileExtensionInfo.DeviceFlag
Defines the values of **deviceFlags** used in **RootInfo**. **deviceFlags** is used to determine whether a capability is available through the AND operation.
**System capability**: SystemCapability.FileManagement.UserFileService
### Attributes
| Name| Type | Value| Readable| Writable| Description |
| ------ | ------ | ---- | ---- | ---- | -------- |
| SUPPORTS_READ | number | 0b1 | Yes | No | Read support.|
| SUPPORTS_WRITE | number | 0b10 | Yes | No | Write support.|
## fileExtensionInfo.DocumentFlag
Defines the values of **mode** used in **FileInfo**.
**System capability**: SystemCapability.FileManagement.UserFileService
### Attributes
| Name| Type | Value| Readable| Writable| Description |
| ------ | ------ | ---- | ---- | ---- | -------- |
| REPRESENTS_FILE | number | 0b1 | Yes | No | File.|
| REPRESENTS_DIR | number | 0b10 | Yes | No | Directory.|
| SUPPORTS_READ | number | 0b100 | Yes | No | Read support.|
| SUPPORTS_WRITE | number | 0b1000 | Yes | No | Write support.|
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