使用此摘要函数： 计算方法 ：. Sum. 对数值求和。 默认情况下对具有数值的值字段使用。 如果将字段置于字段列表的“值”区域中时，字段包含空白或非数字 (文本、日期或布尔值) 值，则数据透视表将使用该字段的 Count 函数。

Advanced Systems Format (.asf) The Advanced Systems Format (ASF) is the preferred Windows Media file format. With Windows Media Player, if the appropriate codecs are installed on your computer, you can play audio content, video content, or both, that is compressed with a wide variety of codecs and that is stored in an .asf file.

Types of info. What will be deleted. Where it's stored. Browsing history. The URLs of sites you've visited, and the dates and times of each visit. On your device (or, if sync is turned on, across your synced devices)

Learn about Xbox consoles, system requirements, and networking, and get troubleshooting help.

Active content is additional functionality in a file or program, such as macros, add-ins, or data connections. This article lists types of active content that can be blocked by settings in Trust Center and which, when present in a document, cause display of the Message Bar when you open your file.

Choose the required access permission for the selected extension: When you click the extension: This setting only allows the extension to access the current site in the open tab or window when you click the extension.If you close the tab or window, you’ll have to click the extension to turn it on again.

Get help with Outlook for Windows, the Outlook app, Outlook.com, and more. Find training videos, how-to articles, and Outlook support content

注意: 如果你不在 Windows 设备上，可以通过转到“联系”Microsoft 支持部门 键入“排查 BSOD 错误”，在浏览器中运行“蓝屏疑难解答”。 然后按照“推荐的帮助”下的引导演练进行操作。

Method. Used for. Authenticator app. Two-factor verification and password reset authentication. Text messages. Two-factor verification and password reset authentication.

5. You can add more tabs. To put apps and files in tabs at the top of a channel, select Add a tab next to a tab name. You'll see a list of things to add (favorite apps and files).