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Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

您可以查看和订阅 rss 源列表或库，或者甚至视图有筛选信息或自定义列的位置。 RSS 源帮助您将来自不同网站的更新合并到 RSS 阅读器中。 RSS 源是定期发送的，它显示在 RSS 阅读器中，在该阅读器中，您可以管理对其他类型的信息（例如来自新闻或博客网站的 ...

按控制器上的 Xbox 按钮 打开导航页，然后转到“档案和系统”>“设置”>“帐户”>“订阅”。 选择要管理的订阅。 可在此处查看计划、到期日期、计费历史记录、订阅状态以及更改付款方式。

Examples. Following are examples of some common nested IF (AND ()), IF (OR ()) and IF (NOT ()) statements in Excel. The AND and OR functions can support up to 255 individual conditions, but it’s not good practice to use more than a few because complex, nested formulas can get very difficult to build, test and maintain.

Download and install or reinstall Microsoft 365 or Office 2021 on a PC or Mac. Set up Office apps and email on a mobile device. Small business help and learning. Learn how to download and install apps you need from your Microsoft 365 business subscription.

如果你从第三方零售商（如 Amazon、Apple、Best Buy 或 Google Play）购买了 Microsoft 365 订阅，请直接与他们联系以管理你的订阅和计费。 Microsoft 无法取消或帮助打开或关闭第三方零售商所售订阅的定期计费。

你还可以获得常年技术支持和 1 TB 的云存储空间来存储文件和照片，无需额外付费。. 使用 Microsoft 365 家庭版最多可以向订阅添加 5 个额外人员。. 如果你认为现在不需要桌面应用的全部功能，但想要Microsoft 365 家庭版或个人版 计划附带的额外云存储和电子邮件 ...

The most common type is a physical, external keyboard that plugs into your PC. But Windows has a built-in Accessibility tool called the On-Screen Keyboard (OSK) that can be used instead of a physical keyboard. You don’t need a touchscreen to use the OSK.