在 2019年12月11日 +0800 AM1:50，Eli Zaretskii <eliz@gnu.org>，写道：
>
> If resize-mini-windows is nil, the result will be the same as with the
> current code, which calls minibuffer-message: the message is partially
> or completely invisible.
>
> > BTW, we should probably think about replacing `message` with something
> > that lets the caller give more information about the intended behavior
> > (e.g. to also solve the issue of several successive calls to message
> > resulting in the user only seeing the last message). Of course, this
> > would be for Emacs-28.
>
> Right.
>

Display combination of the prompt and the message is good but may be complex to implement it.
What about display message transiently and then restore to prompt?

I see the doc string of minibuffer-message-timeout says:

	How long to display an echo-area message when the minibuffer is active.
If the value is a number, it should be specified in seconds.
If the value is not a number, such messages never time out.

If minibuffer is active, the message will be displayed  for a moment(like 1s) and then disappears.
If minibuffer is not active, the message will be displayed forever. I think this is simpler and also good for me.

What is the problem of this behaviour? Is it easier to implement?