IF 函数 - 嵌套公式和避免错误 - Microsoft 支持
备注. 虽然 Excel 允许嵌套最多 64 个不同的 IF 函数，但不建议这样做。 原因如下。 要正确地构建多个 IF 语句需要花大量心思，并要确保其逻辑在直至结尾的每个条件下都能计算正确。
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, Excel Web App, Excel for Windows Phone 10
Contact Us - Microsoft Support
Additional help is available if you need it, including live chat with a Microsoft specialist. Microsoft 365. Office. Windows. Xbox. Surface devices. Copilot. Dynamics 365. Intune.
I forgot the username or password for the account I use with Microsoft ...
Microsoft 365 for business. If your Microsoft 365 product is one of the following, you have a Microsoft 365 for business product. These products are usually associated with a work or school account, and your Microsoft 365 license (if your subscription has one) came from the organization where you work or go to school.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel 2021, Word 2021, Outlook 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, OneNote for Mac, SharePoint in Microsoft 365, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Activation, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Project for Office 365
新增前置重疊時間或延隔時間至任務 - Microsoft 支援服務
若要增加延遲時間，請輸入正數或百分比 (例如 2d) 。. 延隔時間會在兩個具有相依性的工作之間造成延遲。 例如，如果您想要在第一個任務結束和第二個任務開始之間延遲 2 天，請在兩個任務之間 建立完成-開始相依性 ，然後在第二個任務開始之前加上 2 天的延遲時間。
Applies To:
Project Online Desktop Client, Project Professional 2021, Project Standard 2021, Project Professional 2019, Project Standard 2019, Project Professional 2016, Project Standard 2016
啟用或停用 Yammer 電子郵件和電話通知 - Microsoft 支援服務
控制在電子郵件中收到的通知. 執行下列其中一個動作：. 在 Yammer中 ，選取設定 的按鈕，然後 選取編輯 設定。. 在傳統 Yammer中，選取左側設定中的 按鈕，然後選取編輯 設定。. 在 帳戶設定 下，選取通知 選項卡 。. 如果您是多個網路的成員，您必須變更每個 ...
Applies To:
Microsoft 365 admin
Sign in using Microsoft Authenticator - Microsoft Support
If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Enter your username at the sign-in prompt and select Next. Select Send notification. You will be prompted to Check your Authenticator app and may also be shown a number. On your mobile device, open Authenticator, or ...
更改Word文档中的边距 - Microsoft 支持
在文档中更改边距，以更改布局并确保所有内容正确显示。. 应用预定义边距设置. 选择“ 页面布局 ”>“ 边距 ”。. 选择所需边距度量。. 注意: 如果文档包含多个分区，则新的边距仅应用于所选分区。. 创建自定义边距. 选择“ 页面布局 ”>“ 边距 ”。. 选择 ...
Applies To:
Word for Microsoft 365, Word 2021, Word 2019, Word 2016
Microsoft 365 で使用するアカウントのユーザー名またはパスワードを忘れた場合 - Microsoft サポート
Microsoft 365 for business. 使用している Microsoft 365 製品が次のいずれかである場合、Microsoft 365一般法人向け 製品を所有していることになります。 これらの製品は通常、職場または学校アカウントに関連付けられており、Microsoft 365 ライセンスは (それが自分のサブスクリプションに含まれている場合 ...
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Publisher for Microsoft 365, Visio Plan 2, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel 2021, Word 2021, Outlook 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2019 for Mac, Word 2019 for Mac, Outlook 2019 for Mac, OneNote 2019 for Mac, Office 2019 for Mac, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, Office 2016, OneNote for Mac, SharePoint in Microsoft 365, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Small Business Admin, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Activation, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com, Project for Office 365, Publisher 2013 Developer
キーボードの使い方 - Microsoft サポート
これらのキーを単独で使用するか、または他のキーと組み合わせて使うことで、特定の操作を実行します。. 最も頻繁に使用されるコントロール キーは、Ctrl キー、Alt キー、Windows ロゴ キー、 Esc キーです。. ファンクション キー 。. 特定の操作を実行する ...
Uninstall or remove apps and programs in Windows
Select Start > All apps and search for the app in the list shown. Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings. Select Start > Settings > Apps > Apps & features . Find the app you want to remove, select More > Uninstall. Note: Some apps can't be uninstalled from the Settings app right now.