有两种财务方法可用于帮助你回答所有这些问题：净现值 (NPV) 和内部收益率 (IRR) 。. NPV 和 IRR 都被称为贴现现金流方法，因为它们将资金的时间价值考虑在资本投资项目评估中。. NPV 和 IRR 都基于一系列未来付款， (负现金流) 、收入 (正现金流) 、亏损 (负现金流 ...

打开截图工具并获取屏幕截图. 按 Windows 徽标键 ‌+ Shift + S 。. 选择屏幕截图的区域时，桌面将变暗。. 默认情况下，选择“ 矩形模式 ”。. 可以通过在工具栏中选择以下选项之一来更改截图的形状：“矩形模式”、“窗口模式”、“全屏模式”和“任意格式 ...

In the search box on the taskbar, enter device manager, then select Device Manager. Select a category to see names of devices, then right-click (or press and hold) the one you’d like to update. Select Search automatically for updated driver software. Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on ...

学习在 Xbox 上在线兑换充值码后，如何安装游戏和可下载的游戏内容。按控制器上的 Xbox 按钮 打开导航页。选择“我的游戏和应用”，然后选择“查看全部”。 在“游戏”下，选择要安装的游戏。 选择“安装全部”安装游戏和所有可用的附加内容，或者选择“选择要安装的内容”以安装特定的内容 ...

通过将 Microsoft Rewards 应用下载到 Xbox 主机，在玩游戏或购物时关注积分并赢得积分：. 按“Xbox”按钮 打开指南，然后转到“Microsoft Store”。. 选择“搜索”，然后在搜索框中输入“Microsoft Rewards”。. 从结果中选择 Microsoft Rewards 应用，然后将其下载到主机。. 还 ...

Generally, if you bought a physical copy of Windows, the product key should be on a label or card inside the box that Windows came in. If Windows came preinstalled on your PC, the product key should appear on a sticker on your device. If you’ve lost or can’t find the product key, contact the manufacturer. To ensure your product key is ...

Open Device Manager. Right-click the name of the device, then select Uninstall device. Select Uninstall and then restart your PC. Windows will attempt to reinstall the driver. If Windows doesn't find a new driver and reinstalling the driver doesn’t help, contact your PC’s manufacturer for help. Things to try to fix touchpad problems in ...

To check for updates, select Start > Settings > Windows Update , then select Check for updates. If updates are available, you can choose to install them. Check for updates. If you run into problems updating your device, including problems with previous major updates, see common fixes at Troubleshoot problems updating 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 ...

A scanner you've connected using a wired, wireless, or network connection. An app for scanning files, such as Windows Scan, available for free from Microsoft Store. The Windows Scan app can help you scan pictures or documents and save them to your PC as JPEG, bitmap, or PNG files. For more info, see Install and use a scanner in Windows.