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Sign in to SharePoint - Microsoft Support
In the upper left corner of the window, select the app launcher > All apps > SharePoint Tip: If you don't see the SharePoint app under All apps, use the Search box near the top of the window to search for SharePoint.
Applies To: SharePoint in Microsoft 365
在电脑或 Mac 上下载并安装或重新安装 Microsoft 365 或 Office 2021 - Microsoft 支持
准备好安装了吗? 在开始之前,请确保电脑或 Mac 满足 系统要求。. 如果你已兑换产品密钥,只需重新安装应用,或者知道你已通过工作或学校分配了许可证,则可以跳到登录部分 ,下载并安装 Microsoft 365 或 Office。 但是,如果是 首次 安装 Microsoft 365 或 Office,可能需要先执行一些步骤。
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Microsoft 365 for home, Office for business, Office 365 Small Business, Microsoft 365 admin, Office 365 operated by 21Vianet, Office 365 operated by 21Vianet - Admin, Microsoft 365 for Mac, Office 365 Germany - Enterprise, Office 365 Germany - Enterprise admin, Office.com
Do you need help locating your computer name? - Microsoft Support
Click System and Security > System.. On the View basic information about your computer page, see the Full computer name under the section Computer name, domain, and workgroup settings.
Applies To: 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
撤回或替换已发送的电子邮件 - Microsoft 支持
试一试! 如果你使用的是 Microsoft Outlook 应用或 Outlook.com,并且你和你的收件人都在 Microsoft Exchange 或 Microsoft 365 上,并且在同一组织中,则可以撤回或替换你发送的电子邮件。
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016
PowerPoint help & learning
Find PowerPoint help and training from Microsoft. Get answers to your questions, and learn from how-to articles and training videos for PowerPoint.
修正 Windows 中的藍牙問題 - Microsoft 支援服務
若要手動安裝藍牙驅動程式: 移至電腦製造商的網站,並下載最新的驅動程式。 然後執行下列其中一項: 如果您下載了可執行檔 (.exe) 檔案,只要按兩下檔案即可執行並安裝驅動程式。
SUBSTITUTE 函数 - Microsoft 支持
本文介绍 Microsoft Excel 中 SUBSTITUTE 函数的公式语法和用法。. 说明. 在文本字符串中用 new_text 替换 old_text。 如果需要在某一文本字符串中替换指定的文本,请使用函数 SUBSTITUTE;如果需要在某一文本字符串中替换特定位置处的任意文本,请使用函数 REPLACE。
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
添加字体 - Microsoft 支持
下面是安装或管理字体的两种方法: 所有字体都存储在 C:\Windows\Fonts 文件夹中。 (可选)只需将字体文件从提取的文件文件夹拖动到此文件夹中即可添加字体。
Applies To: Word 2013
使用 Xbox 玩云游戏 | Xbox Support
了解如何使用 Android、iOS 或 Windows 设备在 Xbox 上玩云游戏。
安装 Microsoft Defender - Microsoft 支持
当你首次在 Android 上登录到Microsoft Defender 时,我们将引导你完成几个从设置 Web 保护开始的简单步骤。 在此过程中,我们将要求你授予 Defender 执行两项操作的权限:在后台运行并使用辅助功能服务。
Applies To: Microsoft Defender on Android, Microsoft Defender on iOS, Microsoft Defender on Mac, Microsoft Defender on Windows