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IF 函数 - Microsoft 支持
在此示例中,单元格 D2 中的公式表示:IF(C2 = 1, then return Yes, otherwise return No)如你所见,IF 函数可用于计算文本和数值。它还可用于计算错误。 不仅可以检查一项内容是否等于另一项内容并返回单个结果,而且还可以根据需要使用数学运算符并执行其他计算。
Applies To: Excel for Microsoft 365, Excel for Microsoft 365 for Mac, Excel for the web, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
Microsoft 帐户安全信息和验证码 - Microsoft 支持
为什么需要验证码? 当你登录到你的 Microsoft 帐户时,我们可能会要求提供其他证明,证明确实是你的帐户。 最多可以添加 10 种不同的方法来验证登录,并且可以选择:
Applies To: Microsoft account dashboard
Learn about your profile in Microsoft Teams (free) - Microsoft Support
We believe that Microsoft Teams (free) is a place where minors can interact safely to build on friendships and meaningful community. We also know that keeping online experiences safe and positive involves more than building in permission settings and controls.
Applies To: Microsoft Teams, Microsoft Teams personal
关闭你的 Outlook.com 帐户 - Microsoft 支持
重要: 关闭Microsoft帐户时,你的电子邮件和联系人将从我们的服务器中删除,无法恢复。如果将Microsoft帐户用于 Xbox、Skype、OneDrive 或其他Microsoft服务,则你将无法再访问这些服务。 你还将无法访问任何保存的 BitLocker 恢复密钥。
Applies To: Outlook.com
Wi-Fi network not secure in Windows - Microsoft Support
If you’re connecting to your home Wi-Fi network, consider changing the type of security that your router or access point uses. You can do this by signing in to your router using the software for it, and then changing the security type for your home Wi-Fi network.
如何兌換禮品卡和代碼 | Xbox Support
瞭解如何在行動裝置、Windows 裝置或 Xbox 主機上兌換 Microsoft/Xbox 禮品卡或其他代碼。
Help in Notepad - Microsoft Support
Get answers to common questions about Notepad. To open Notepad, select the Start button, enter Notepad, then select Notepad from the results. Here are answers to a few common questions about Notepad:
使用 SUMPRODUCT 对一个或多个数组中的对应值的乘积求和
sumproduct 使用单元格区域 (或创建数组 公式) 作为参数 (公式的各个部分,使其) 。 它将数组中的项相乘,然后对结果进行汇总。 此示例是一个购物清单,其中一个数组列出每个商品的成本,另一个数组列出将购买的商品数量。
Applies To: Excel 2013
Stream HDR video on Windows - Microsoft Support
Battery saver is turned off.To find out if battery saver is turned on or off, select Start , then search for settings.Select Settings > System > Power & battery.If you want the best HDR video experience even when battery saver is turned on, select Battery saver, then turn off Lower screen brightness when using battery saver.For the best HDR video experience, Windows needs to be able to set ...
帐户帮助
获取有关 Microsoft 帐户的帮助。 了解如何设置 Microsoft 帐户,如何保护它,并使用它来管理服务和订阅。