How to use post-it notes and how to use mobile phone post-it notes.

1. Open the "Notes" that comes with the system, enter the Notes interface, and select the "+"at the top.

2. Edit what you want, and the picture is finished. Click Send.

3. Click the attachment button to select a picture, take a photo at the same time, or select a contact.

4. At the same time, you can also modify the background color of the note. Click the rightmost button in the upper right corner to make a selection.

If you want to delete the note, just hold down the note and click the delete button.