How does iphone clean up the address book?

How to clean the address book for Iphone:

1. First, click Settings on the Iphone;

2. Enter the settings menu of iphone;

3. Click on your avatar to enter the AppleID menu;

4. Click on the icon below;

5. Enter the Icloud menu;

6. By default, the address book is open. Click the green button behind it to close it.

7. Click Delete from My Iphone in the query box that appears to delete all contacts in the address book with one click.