使用带数组（单元格区域）的 sumproduct，乘以数组中的各单元格（例如，单元格 b2 x c2），然后将结果相加。

Focus is a new feature in Windows 11 that helps you minimize distractions. To help you stay on track, it integrates with the Clock app with features like a focus timer and music integration.

Create a SharePoint team site to provide a location where you and your team can work on projects and share information from anywhere on any device. A team site includes a group of related web pages, a default document library for files, lists for data management, and web parts that you can customize to meet your needs.. Should I create a team site or a communication site?

你可以随时取消 Xbox 订阅。 关闭定期计费将停止订阅的未来扣费，并使你在订阅到期之前使用其权益。 你也可能有资格立即取消并获得退款；但不是所有订阅费用都能退款。

所幸的是，您可以自己解決這個問題。 您可以為訂閱指定其他付款選項來支付逾期未付餘額。 只要登入包含您訂閱的 Microsoft 帳戶，並依照畫面上的指示進行即可。

Learn how to install Skype for Business on your Windows computer, mobile device, or Macintosh.

若要在 Microsoft Teams 中播放录制的会议，请转到会议的聊天历史记录，然后单击“播放”。

Set up the Microsoft Authenticator app from the Security info page. Depending on your organization’s settings, you might be able to use an authentication app as one of your security info methods.

If your Xbox One or Xbox Series X|S console is having network connection issues of any kind, we’ll point you to the best solution for the specific type of connection issue you’re experiencing.

Xbox Game Pass Ultimate 含有所有 Game Pass 權益，其中包含超過 100 款優質的主機和電腦遊戲。 我們會持續不斷加入新的遊戲，因此，隨時都有新的遊戲可以玩。