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。

Battery Life: Lowering your refresh rate can save battery power by reducing the amount of energy your display consumes.This can be useful when you are using a laptop or tablet and want to extend your battery life.

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Minecraft（我的世界）商城让你可以更安全、更轻松地购买我的世界社区制作的内容。 只需购买一次内容，即可在任何移动设备、Xbox 和 Windows 设备上终生享用。

如果应用已打开，请在任务栏上找到应用的图标按钮，长按此按钮，然后向上滑动，直到出现“应用列表”。 如果你使用的是鼠标，请在任务栏上找到应用图标按钮，右键单击此按钮，然后选择“固定到任务栏”。

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts.

Click a symbol in the immediate list, or click More Symbols, and then click the symbol you want.

此内容可帮助你使用工作或学校帐户，即组织 (dritan@contoso.com) 等提供给你的帐户。 如果在个人 Microsoft 帐户（即你为自己设置 (的帐户（例如，danielle@outlook.com) ）上出现双重验证问题，请参阅打开或关闭 Microsoft 帐户的双重验证。. 我没有随身携带移动设备

Many users find that using Microsoft 365 apps with keyboard shortcuts on an external keyboard helps them work more efficiently. For users with mobility or vision disabilities, keyboard shortcuts can be easier than using the touchscreen, and are an essential alternative to using a mouse.

These are the buttons and bars that sit right next to your Start button and cannot be moved.. Search on the taskbar can be set in four ways: either to Search box, which includes a full text box to enter your search (or your Bing Chat prompt; see Using the new Bing on the Windows taskbar for more) into plus additional search highlights, Search icon and label (displaying as a search icon and ...