How to edit SMS on Apple's mobile phone?

The input method that comes with Apple's mobile phone has no line breaking function, and the line breaking effect can be achieved by installing a third-party input method. Taking ISO 12 as an example, the specific steps are as follows:

1. Turn on the phone and download "sogou Input Method" in the App Store:

2. Find "Settings" in your phone:

3. Open the settings and find "General":

4. Open GM and find "Keyboard":

5. Open the keyboard and select "Add New Keyboard":

6. Find "sogou Input Method" on the "Add New Keyboard" page to add:

7. Open a dialog box, switch to sogou input method, and you can see a new line key on the virtual keyboard: