数据文件处理
@ohos.app.ability.PrintExtensionAbility (打印扩展能力)
PrintExtensionContext
@ohos.pasteboard (剪贴板)
@ohos.print (打印)
@ohos.scan (扫描)
@ohos.request (上传下载)
@ohos.request.cacheDownload (缓存下载)
@ohos.zlib (Zip模块)
@ohos.selectionInput.SelectionExtensionAbility (划词扩展能力)
@ohos.selectionInput.SelectionExtensionContext (划词扩展上下文)
@ohos.selectionInput.selectionManager (划词管理)
@ohos.selectionInput.SelectionPanel (划词面板)