Where is the one-button screen lock software application of Apple mobile phone?

There are two ways to lock the screen with one button. One is to use the lock key of the mobile phone (6 is on the right side of the mobile phone), and the other is to use the soft key instead of setting-general-auxiliary function-opening auxiliary.

The operation of setting one-button screen lock for iphone is as follows:

First: Click the "Settings" icon on the desktop.

Second: Open "General" and select "Accessibility".

Third, find the "auxiliary touch" option in the interface to open:

Fourth, turn on the "auxiliary touch" option to view the dots:

Fifth: Click the "Auxiliary Touch" dot, select "Device", and then click "Lock Screen" to lock the screen with one button.