Meet Windows 11 - Microsoft Support
Meet Windows 11. Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need. Read on to get to know Windows 11.
使用“自动求和”对数字求和 - Microsoft 支持
选择要求和的数字旁边的单元格，在“ 开始 ”选项卡上选择“ 自动求和 ”，按 Enter ，即可完成。. 选择“ 自动求和 ”时，Excel 会自动输入一个公式 (，该公式使用 SUM 函数) 对数字求和。. 下面是一个示例。. 要将此“娱乐”预算中 1 月的数字相加，请选择单元 ...
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 for iPad, Excel for iPhone, Excel for Android tablets, Excel for Android phones
Sign in to sync Microsoft Edge across devices
Select your account and then select Sign in to sync. To enter a new account, select Add Account and follow the prompts. When you’re signed in, Microsoft Edge syncs your favorites, passwords, history, open tabs, autofill form entries (such as your name, address, and phone number), and other data types across the devices you use with this account.
Excel not responding, hangs, freezes or stops working
Do one of the following: If you are on Windows 11 or Windows 10, choose Start > All apps > Windows System > Run. Type Excel /safe in the Run box, and then click OK. If you are on Windows 8 or Windows 8.1, click Run in the Apps menu, type Excel /safe in the Run box, and then click OK.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
WEEKDAY 函数 - Microsoft 支持
WEEKDAY 函数语法具有下列参数：. Serial_number 必需。. 一个序列号，代表尝试查找的那一天的日期。. 应使用 DATE 函数输入日期，或者将日期作为其他公式或函数的结果输入。. 例如，使用函数 DATE (2008,5,23) 输入 2008 年 5 月 23 日。. 如果日期以文本形式输入，则会 ...
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
Account help
Signing in with Microsoft. Get help with signing in, locked or compromised accounts, linked accounts, closing, reopening, and updating your security info and account profile. Get Microsoft account help. Manage your personal account from a single dashboard, including payment information, purchases, subscriptions, and more. Go to your dashboard.
How to get help in Windows - Microsoft Support
Here are a few different ways to find help for Windows. Search for help - Enter a question or keywords in the search box on the taskbar to find apps, files, settings, and get help from the web.
Import or export text (.txt or .csv) files - Microsoft Support
On the Data tab, in the Get & Transform Data group, click From Text/CSV. In the Import Data dialog box, locate and double-click the text file that you want to import, and click Import. Follow the instructions in the Text Import Wizard. Click Help on any page of the Text Import Wizard for more information about using the wizard.
Applies To:
Excel for Microsoft 365, Excel 2021, Excel 2019, Excel 2016
PV 函数 - Microsoft 支持
PV 是一个财务函数，用于根据固定利率计算贷款或投资的现值。 可以将 PV 与定期付款、固定付款（如按揭或其他贷款）或投资目标的未来值结合使用。 可使用 Excel 公式指导根据设定的月还款计算你可以承担的现值（贷款金额）。 同时，你将了解如何在公式中使用 PV 函数。
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 2013
Microsoft Edge の Internet Explorer モード - Microsoft サポート
Internet Explorer のサポートは 2022 年 6 月 15 日に終了しました。. 必要な場合にのみ、Microsoft Edge 内で Internet Explorer モードを使用することをお勧めします。. 詳細については、「 Microsoft Edge の詳細 」を参照してください。. Internet Explorer モードを有効にするには ...