- Microsoft
什么是数字签名? 数字签名或 ID 通常称为 数字证书。 若要对 Office 文档进行数字签名,必须具有当前 (未过期) 数字证书。 数字证书通常由证书颁发机构 (CA) 颁发,CA 是颁发数字证书供其他方使用的受信任的第三方实体。
Applies To: Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Word 2021, Word 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Office 2016, Excel 2013, Word 2013, Outlook 2013, PowerPoint 2013, Office 2013
使 SUMPRODUCT
示例. 如果要使用 SUMPRODUCT 和 创建数组公式,下面是一个 Excel 网页版 工作簿,其数据与本文中使用的不同。. 复制下表中的示例数据,然后将其粘贴进新的 Excel 工作表的 A1 单元格中。 要使公式显示结果,请选中它们,按 F2,然后按 Enter。
Applies To: Excel 2013
Microsoft Authenticator - Microsoft
สิ่งสำคัญ: Microsoft ไม่สนับสนุนเวอร์ชัน Authenticator ที่มีอายุมากกว่าหนึ่งปีอีกต่อไป ทําให้อุปกรณ์ของคุณทันสมัยอยู่เสมอ
稿 - Microsoft
开始演示. 在“幻灯片放映”选项卡上的“开始放映幻灯片”组中,选择“从头开始”。 现在,如果在一台显示器上使用 PowerPoint,并且需要显示演示者视图,请在“幻灯片放映”视图左下角的控制栏上选择 ,然后选择“显示演示者视图”。 使用演示者视图中的控件
Applies To: PowerPoint for Microsoft 365, PowerPoint for Microsoft 365 for Mac, PowerPoint 2021, PowerPoint 2021 for Mac, PowerPoint 2019, PowerPoint 2019 for Mac, PowerPoint 2016
| | Skype
获取 全新的 Windows、Mac 和 Linux 版 Skype 的 Skype 套餐 支持,不论身在何处,都能与朋友和家人保持联系。
Protect yourself from phishing - Microsoft Support
First time, infrequent senders, or senders marked [External] - While it's not unusual to receive an email or Teams message from someone for the first time, especially if they are outside your organization, this can be a sign of phishing.Slow down and take extra care at these times. When you get an email or a Teams message from somebody you don't recognize, or that Outlook or Teams identifies ...
View device and app use with Family Safety activity reporting ...
Screen time reporting shows daily and weekly details about when and for how long your family member used their devices. Gain insight into the amount of time your family member spends on a particular social media app, game or web browser and decide whether you would like to enable screen time limits for any connected devices. To view screen time for a family member, tap Today, then Screen time ...
Applies To: Microsoft Family Safety
- Microsoft
使用颜色管理系统为不同的显示设备分配不同的颜色描述文件,从而在所有设备上创建统一的颜色体验。通常情况下,Windows 会自行分配颜色,但是如果需要安装和分配自定义颜色描述文件,以下为操作方法:
Get started with Microsoft 365 Groups in Outlook
Once you're in your group click Add Members on the Ribbon. If you're using Outlook on the web click where it says how many members your group has, near the top right of the window, then click Add members.Alternatively, go to the navigation bar on the left margin and select the Groups icon located below the People icon.
Applies To: Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Microsoft 365 admin, Outlook.com, Outlook on the web for Exchange Server 2016, Outlook on the web for Exchange Server 2019
- Microsoft
若要在Windows 10中打开文件资源管理器,请选择任务栏上的图标 ,按键盘上的 Windows 徽标键 + E,或选择用户图标) 正下方的“开始 > 文档 (”。. 如果无法打开文件资源管理器,下面是一些可以尝试的方法。