但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False (AND)，或只有一个条件需要为 True 或 False (OR)，或者如果想要检查某个条件是否不 (NOT) 符合你的条件，这时该怎么做呢？这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。

The dark theme changes the default bright background color in the new Microsoft Edge to a darker color, which is easier on the eyes in low-light environments or if you prefer less bright interfaces. Here's how to activate dark mode: Go to Settings and more > Settings .

If you're having trouble launching Microsoft Store, here are some things to try: Reset the Microsoft Store cache: Press the Windows Logo Key + R to open the Run dialog box, type wsreset.exe, and then select OK.

To find Sync settings, select Start , then select Settings > Accounts > Sync your settings . Choose from settings such as language preferences, passwords, and color themes. If you turn on Other Windows settings, Windows also syncs some device settings (for things like printers and mouse options), File Explorer settings, and notification preferences.

If instructions to install the update don’t automatically appear, you can start the process manually. To do this, press the Xbox button to open the guide, choose Profile & system > Settings > Devices & connections > Controllers & headsets, and then select the controller you want to update.On the Xbox Wireless Controller screen, select “…” to check the firmware version for your controller.

Ensure these modes create an alert that is visible on your device. Make sure you have a device signal and Internet connection. Make sure your phone calls and text messages are getting through to your mobile device.

Note: The first time you use the DirectX Diagnostic Tool, you might be asked whether you want to check if your drivers are digitally signed.We recommend that you select Yes to help ensure that your drivers have been signed by a publisher that has verified their authenticity.

Learn how to download, install, and configure Language Accessory Packs for Microsoft 365 for additional display, help, and proofing tools.

With a Microsoft or Xbox gift card, you let the lucky recipient choose the gift they want.There are no fees or expiration dates, and either card can be used to buy: Popular games, apps, and add-ons for Windows and Xbox.

Delete a page break. Select Home > Show/Hide . This will display non-printing characters—paragraph markers, section breaks, page breaks, etc.—that you may want to see while you’re working on your document.