The WP editor will automatically remove the carriage return and line feed, and the articles are all crowded. what is the best solution?

The WP editor will automatically remove the carriage return and line feed, and the articles are all crowded. what is the best solution? The wp 4.1 version is used. in the editor, there is a line break in the layout, but after the release, there is no line break at the front end. how can this problem be solved?
Manually add a carriage return in text mode.
Yes, but if you switch to rich text mode to edit, modify,
It will be removed automatically.

Reply to discussion (solution)

Use the nl2br function

Nl2br
The text line feed is only changed in the html code, and only a space is displayed.