提示: 为了获得最佳图片质量，请确保选择了 “屏幕上显示 ”和“ 图片 ”选项。 但是，为了保留图片质量，使用 屏幕上所示 和 “图片 ”选项复制的项目始终以原始大小的 100% 粘贴。 例如，如果按 75% 缩放工作表，则从该工作表复制的项可能会显示较大，因为它以实际大小粘贴。

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Important: If your device is out of support, it is no longer receiving security updates from Microsoft and may become more vulnerable to security risks and viruses.Therefore, we strongly recommend that you update to the latest version of Windows. Each version of Windows is supported for 18 months.

To change appearance, select Appearance and make the changes you want to your default theme, zoom, toolbar, and fonts.

运算符用于指定要对公式中的元素执行的计算类型。 Excel 遵循一般数学规则进行计算，即括号、指数、乘法和除法以及加减法或首字母缩略词 PEMDAS (请原谅我亲爱的阿姨 Sally) 。 使用括号可以更改该计算顺序。 计算运算符分为四种不同类型：算术、比较、文本连接和引用。

With this subscription you won't have access to the desktop apps and you only get 100 GB of storage. Important: If you're moving from Microsoft 365 Family or Personal and you used over 100 GB of storage, you'll need to remove some of your files to remain within the 100 GB limit.. Switch to Microsoft 365 Family. Before you move to Microsoft 365 Family, you can check prices.

如果使用 bom (字节顺序标记) 保存，则可以正常打开使用 utf-8 编码的 csv 文件。 否则，可以通过以下任一方式打开它。

找到来自 Web 的动态 GIF. 也可以使用“插入联机图片”或“插入剪贴画”功能在 Web 上搜索 GIF，具体取决于 PowerPoint 版本。在功能区的“</c2>插入</c0>”选项卡上，选择“插入联机图片”或“插入剪贴画”。

Microsoft Edge is the recommended browser by Microsoft. Support for Internet Explorer ended on June 15, 2022. Internet Explorer 11 has been permanently disabled through a Microsoft Edge update on certain versions of Windows 10.

Tips: While signing in, select Yes at the "Stay signed in?" prompt if you want to go straight to your mailbox next time (not recommended for shared computers). Alternatively, check the "Don't show this again" box and select No to be prompted for your password each time.. If you can't sign in, or have forgotten your username or password, use our sign-in troubleshooter.