How to set Apple's 8p screen rotation?

The method of setting screen rotation for iPhone 8 plus phone is as follows:

First turn on the iPhone 8 plus phone, and then slide up at the bottom of the phone screen to bring up the shortcut menu bar of the phone.

2. After entering the shortcut menu bar of the mobile phone, find the symbol in the red box below, and then light its icon.

3. After the icon is highlighted, as shown in the figure below, the screen of the mobile phone will automatically rotate.