The reason why the line break key cannot be found in Douyin typing is because:

1. Because the Douyin system has been updated, this function has been cancelled.

2. You can wrap the line like this, long press the input box to enter Douyin, click on a dialog box or comment at will, enter the text that needs to be written, long press the blank space of the input box, and click in front of the text you want to wrap. Click the screen, click "Wrap", and the line wrapping of the mobile phone keyboard is completed.