How does vimperator use abbreviate abbreviations to bring back strings of cars?

  question, vim

The. vimperatorrc configuration includes:

ab aaa a\nb\nc

To achieve the following effects

a
 b
 c

But the actual effect is

a\nb\nc

Consult

:iab aaa a<CR>b<CR>c
It is not recommended to use the extension to bring back the car in command line mode, so use the:iabOnly insert mode is supported

In addition, plug-ins such as snippets are recommended to extend the text.