使用 SUM 函數來加總範圍中的數字 - Microsoft 支援服務
以下公式使用兩個儲存格範圍 ：=SUM (A2:A4,C2:C3) 加總 A2:A4 和 C2:C3 範圍中的數字。. 按 Enter 即可取得合計 39787。. 建立公式的方式如下：. 在儲存格輸入 =SUM ，後面接著左括號 ( 。. 若要輸入第一個公式範圍，又稱為 引數 (公式必須運算的資料)，請輸入 A2:A4 (或是 ...
Applies To:
Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
How to adjust power and sleep settings in Windows
Windows 11 Windows 10. To adjust power and sleep settings in Windows 11, select Start > Settings > System > Power & battery > Screen and sleep. Screen: Select how long you want your device to wait before turning the screen off when you're not using your device. Sleep: Select how long you want your device to wait before going to sleep when you ...
Comment se connecter à Hotmail - Support Microsoft
Remarques : Votre mot de passe Hotmail ou Outlook.com est le même que celui de votre compte Microsoft. Si vous pouvez vous connecter mais que vous rencontrez des problèmes avec Outlook.com, vérifiez l’état du service.Si l’état n’est pas vert, patientez jusqu’à ce que le service fonctionne normalement et essayez de vous reconnecter.
Applies To:
Outlook.com
使用 Microsoft Edge 中的“集合”整理创意 - Microsoft 支持
继续上次中断的工作. 借助“集合”，可以轻松打开已保存的页面以便稍后执行操作。 在计算机上. 要在新窗口中以选项卡的形式打开集锦中的所有项，请选择“共享和更多” >“全部打开”。 要在新选项卡中打开个别项，请右键单击它，然后选择“在新选项卡中打开”或“在新窗口中打开”。
Manage photos and videos with Windows Photos app
In the search box on the taskbar, type photos and then select the Photos app from the results. Select Settings, and under the About section, select About Photos. Photos: Says Updated in the About section of Settings—you are running the new version of the Photos app. This version includes features like iCloud integration in left navigation bar.
修复麦克风问题 - Microsoft 支持
麦克风音量过低或似乎完全无法工作. 请尝试以下解决方案：. 确保麦克风或耳机已正确连接到计算机。. 确保麦克风摆放在正确的位置。. 提高麦克风音量。. 下面将了解如何在Windows 11：. 选择 "开始>设置>系统 > 声音"。. 在 "输入 "中，选择麦克风以查看其属性 ...
Upgrade to Windows 10 Pro - Microsoft Support
Upgrade to Windows 10 Pro. Windows 10. Windows 10 Pro offers more advanced security and business networking features, including: BitLocker Drive Encryption. Remote Desktop. The ability to join a domain or Azure Active Directory. If you're running Windows 10 Home, select Get Windows 10 Pro to upgrade your device.
Hàm IF – các công thức được kết hợp với nhau và tránh các rắc rối
Hàm IF cho phép bạn tạo so sánh lô-gic giữa một giá trị và một giá trị dự kiến bằng cách kiểm tra điều kiện, rồi trả về kết quả nếu True hay False. =IF (Điều gì đó là True, thì làm gì, nếu không thì làm gì khác) Vì vậy, một câu lệnh IF có thể có hai kết quả. Kết ...
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
Create a drop-down list - Microsoft Support
Select the cell in the worksheet where you want the drop-down list. Go to the Data tab on the Ribbon, and then Data Validation. Note: If you can’t select Data Validation, the worksheet might be protected or shared. Unlock specific areas of a protected workbook or stop sharing the worksheet, and then try step 3 again.
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
在 Windows 中Wi-Fi更安全Windows - Microsoft 支持
连接到 WLAN 网络。. 了解操作方法. 选择 任务栏右侧"WLAN 网络"图标，然后选择"管理 Wi-Fi 连接" (>) 设置中的"设置"。. 对于Wi-Fi的虚拟网络，请选择"网络名称"旁边的Wi-Fi属性"。. 在Wi-Fi"屏幕上，查看"安全类型 "旁边的值 。. 如果你已使用 WPA3 加密安全连接到网络 ...