Interface BlobSource
使用集合让一切井井有条
根据您的偏好保存内容并对其进行分类。
Blob 来源
可将其数据导出为 Blob
的对象的接口。
实现类
详细文档
getAs(contentType)
将此对象内的数据作为转换为指定内容类型的 blob 返回。此方法会向文件名添加相应的扩展名,例如“myfile.pdf”。不过,它假定文件名最后一个英文句点(如果有)后面的部分是应替换的现有扩展名。因此,“ShoppingList.12.25.2014”会变为“ShoppingList.12.25.pdf”。
如需查看转化每日配额,请参阅 Google 服务的配额。新创建的 Google Workspace 网域可能会暂时受到更严格的配额限制。
参数
名称 | 类型 | 说明 |
contentType | String | 要转换到的 MIME 类型。对于大多数 blob,'application/pdf' 是唯一有效的选项。对于 BMP、GIF、JPEG 或 PNG 格式的图片,'image/bmp' 、'image/gif' 、'image/jpeg' 或 'image/png' 中的任何一种也有效。对于 Google 文档,'text/markdown' 也有效。 |
返回
Blob
- 数据(以 blob 的形式)。
getBlob()
以 blob 的形式返回此对象内的数据。
返回
Blob
- 数据(以 blob 的形式)。
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最后更新时间 (UTC):2025-07-26。
[null,null,["最后更新时间 (UTC):2025-07-26。"],[[["\u003cp\u003e\u003ccode\u003eBlobSource\u003c/code\u003e is an interface allowing objects to export their data as a Blob.\u003c/p\u003e\n"],["\u003cp\u003eIt offers two primary methods: \u003ccode\u003egetAs()\u003c/code\u003e to retrieve data as a Blob with a specific content type and \u003ccode\u003egetBlob()\u003c/code\u003e for getting data as a raw Blob.\u003c/p\u003e\n"],["\u003cp\u003eVarious Apps Script objects, including Documents, Spreadsheets, and Images, implement this interface.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003egetAs()\u003c/code\u003e can convert data to formats like PDF, common image types, and Markdown for Google Docs, but is subject to usage quotas.\u003c/p\u003e\n"]]],[],null,["# Interface BlobSource\n\nBlobSource\n\nInterface for objects that can export their data as a [Blob](/apps-script/reference/base/blob).\n\n### Implementing classes\n\n| Name | Brief description |\n|------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------------|\n| [Blob](/apps-script/reference/base/blob) | A data interchange object for Apps Script services. |\n| [Chart](../charts/chart.html) | A Chart object, which can be converted to a static image. |\n| [Document](../document/document.html) | A document, containing one or more [Tab](../document/tab.html) objects, each of which contains rich text and elements such as tables and lists. |\n| [EmbeddedChart](../spreadsheet/embedded-chart.html) | Represents a chart that has been embedded into a spreadsheet. |\n| [File](../drive/file.html) | A file in Google Drive. |\n| [GmailAttachment](../gmail/gmail-attachment.html) | An attachment from Gmail. |\n| [HTTPResponse](../url-fetch/http-response.html) | This class allows users to access specific information on HTTP responses. |\n| [HtmlOutput](../html/html-output.html) | An `Html``Output` object that can be served from a script. |\n| [Image](../slides/image.html) | A [PageElement](../slides/page-element.html) representing an image. |\n| [InlineImage](../document/inline-image.html) | An element representing an embedded image. |\n| [JdbcBlob](../jdbc/jdbc-blob.html) | A JDBC `Blob`. |\n| [JdbcClob](../jdbc/jdbc-clob.html) | A JDBC `Clob`. |\n| [PictureFill](../slides/picture-fill.html) | A fill that renders an image that's stretched to the dimensions of its container. |\n| [PositionedImage](../document/positioned-image.html) | Fixed position image anchored to a [Paragraph](../document/paragraph.html). |\n| [Spreadsheet](../spreadsheet/spreadsheet.html) | Access and modify Google Sheets files. |\n| [StaticMap](../maps/static-map.html) | Allows for the creation and decoration of static map images. |\n\n### Methods\n\n| Method | Return type | Brief description |\n|--------------------------------------|------------------------------------------|---------------------------------------------------------------------------------------|\n| [getAs(contentType)](#getAs(String)) | [Blob](/apps-script/reference/base/blob) | Return the data inside this object as a blob converted to the specified content type. |\n| [getBlob()](#getBlob()) | [Blob](/apps-script/reference/base/blob) | Return the data inside this object as a blob. |\n\nDetailed documentation\n----------------------\n\n### `get``As(contentType)`\n\nReturn the data inside this object as a blob converted to the specified content type. This\nmethod adds the appropriate extension to the filename---for example, \"myfile.pdf\". However, it\nassumes that the part of the filename that follows the last period (if any) is an existing\nextension that should be replaced. Consequently, \"ShoppingList.12.25.2014\" becomes\n\"ShoppingList.12.25.pdf\".\n\nTo view the daily quotas for conversions, see [Quotas for Google\nServices](https://developers.google.com/apps-script/guides/services/quotas). Newly created Google Workspace domains might be temporarily subject to stricter\nquotas.\n\n#### Parameters\n\n| Name | Type | Description |\n|-----------------|----------|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|\n| `content``Type` | `String` | The MIME type to convert to. For most blobs, `'application/pdf'` is the only valid option. For images in BMP, GIF, JPEG, or PNG format, any of `'image/bmp'`, `'image/gif'`, `'image/jpeg'`, or `'image/png'` are also valid. For a Google Docs document, `'text/markdown'` is also valid. |\n\n#### Return\n\n\n[Blob](/apps-script/reference/base/blob) --- The data as a blob.\n\n*** ** * ** ***\n\n### `get``Blob()`\n\nReturn the data inside this object as a blob.\n\n#### Return\n\n\n[Blob](/apps-script/reference/base/blob) --- The data as a blob."]]