If you own an iPhone 8 or later running iOS 14 or later, you can now take a screenshot just by tapping its back thanks to a new accessibility feature called Back Tap, which you’ll have to configure for the task. Here’s how to set it up.
如果您拥有运行iOS 14或更高版本的iPhone 8或更高版本，则现在可以通过点击屏幕快照来捕获屏幕快照，这要归功于一项名为Back Tap的新辅助功能，您必须为该任务进行配置。 设置方法如下。
Back Tap, first introduced in iOS 14, uses the accelerometer in an iPhone 8 or later to detect if you have tapped on the back side of your device. In Settings, you can configure two or three taps to launch certain actions on your phone. Apple considers this an accessibility feature, but it can be useful for everyone.
Back Tap(最初在iOS 14中引入)使用iPhone 8或更高版本中的加速度计来检测您是否在设备的背面轻拍。 在“设置”中，您可以配置两到三个水龙头来启动手机上的某些操作 。 Apple认为这是一项可访问性功能，但它对每个人都有用。
Ordinarily, you’d take a screenshot by using a combination of physical buttons on your iPhone, but it’s easy to fumble them and accidentally lock your iPhone or adjust the volume. With this tip, a quick screenshot is only just two or three taps away.
通常，您可以使用 iPhone上的物理按钮组合来截屏 ，但是很容易弄乱它们并意外锁定iPhone或调节音量。 有了这个技巧，仅两到三个水龙头就可以快速截图。
First, open “Settings” by tapping its gray “Gear” icon. You can usually find it on the first page of your Home screen. If not, try Spotlight Search or Ask Siri.
首先，通过点击灰色的“齿轮”图标打开“设置”。 通常，您可以在主屏幕的第一页上找到它。 如果不是，请尝试Spotlight搜索或询问Siri 。
In Settings, tap “Accessibility.”
在“设置”中，点击“辅助功能”。
On the next screen, tap “Touch.”
在下一个屏幕上，点击“触摸”。
On the “Touch Settings” screen, scroll down until you see the “Back Tap” option, then tap it.
在“触摸设置”屏幕上，向下滚动直到看到“后退”选项，然后点击它。
In “Back Tap” settings, you have a choice of assigning the screenshot action to either two taps (“Double Tap”) or three taps (“Triple Tap”) on the back of the case. Select the option you’d like.
在“后退点击”设置中，您可以选择将屏幕快照操作分配到机箱背面的两次点击(“双击”)或三次点击(“三次点击”)。 选择您想要的选项。
In the menu that pops up, scroll down the list until you locate “Screenshot,” then select it.
在弹出的菜单中，向下滚动列表，直到找到“屏幕截图”，然后将其选中。
After that, go back one menu level to make sure your selection is saved, then exit Settings.
之后，返回上一级菜单以确保您的选择已保存，然后退出“设置”。
The next time you tap two or three times (depending on which setting you chose) on the back of your iPhone, iOS will capture an image of your iPhone’s current screen and save it to an image file. The screenshot images you take will be saved in your photo album as usual, and they can be viewed later in the Photos app. Have fun!
下次您在iPhone背面轻按两到三次(取决于您选择的设置)时，iOS会捕获iPhone当前屏幕的图像并将其保存到图像文件中。 您拍摄的屏幕快照图像将照常保存在您的相册中，以后可以在“ 照片”应用程序中查看。 玩得开心！
翻译自: https://www.howtogeek.com/690823/how-to-take-a-screenshot-by-tapping-the-back-of-your-iphone/
