Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.

如果您是小型企業擁有者. 尋找使用 Microsoft 365 建置、執行及拓展小型企業所需的資訊。. 造訪小型企業說明與學習. 尋找適用于 Windows 作業系統的説明和操作說明文章。. 取得 Windows 支援，並瞭解安裝、更新、隱私權、安全性等。.

=vlookup(b2,c2:e7,3,true) 在此示例中，b2 是第一个 参数，即函数运行所需的数据元素。 vlookup 第一个参数是要查找的值。 此参数可以是单元格引用，也可以是固定值，例如“smith”或 21,000。 第二个参数是单元格搜索范围 c2-:e7，vlookup 在其中搜索要查找的值。

AND 和 OR 函数最多可支持 255 个单独条件，但并不建议使用多个条件，因为构建、测试和维护复杂的嵌套公式是非常难的。. NOT 函数仅采用一个条件。. 下面是根据它们的逻辑写出的公式：. 公式. 说明. =IF (AND (A2>0,B2<100),TRUE, FALSE) 如果 A2 (25) 大于 0，并且 B2 (75 ...

インストールの準備. 作業を始める前に、ご利用の PC または Mac がシステム要件を満たしていることを確認します。. プロダクト キーを既に使用している場合は、アプリを再インストールするか、職場または学校でライセンスが割り当てられていることがわかっている場合は、先に進んで ...

If the Get Help app is unable to resolve your sound or audio issue, try the possible solutions listed: 1. Check your speaker output. 2. Run the audio troubleshooter. 3. Verify that all Windows Updates are installed. 4. Check your cables, plugs, jacks, volume, speaker, and headphone connections.

Open a service request in the Microsoft 365 admin center. This service is free. Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

To create the formula: Type =SUM in a cell, followed by an opening parenthesis (. To enter the first formula range, which is called an argument (a piece of data the formula needs to run), type A2:A4 (or select cell A2 and drag through cell A6). Type a comma (,) to separate the first argument from the next. Type the second argument, C2:C3 (or ...

How to redeem a gift card, Xbox download code or token. Both Microsoft and Xbox gift cards and download codes and tokens work the same way: once redeemed to your Microsoft account, you can spend your balance at Microsoft Store online, on Windows or Xbox, and you can get downloads for the latest apps, games, movies, TV shows, and Surface, Xbox, and accessories.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.