擅长:python、mysql、java
<p><code>vim.command('redraw | echo "%s"' % colorschemes[position])</code></p>
<p>来自<code>:help echo</code>:</p>
<blockquote>
<p>A later redraw may make the message disappear again.
And since Vim mostly postpones redrawing until it's
finished with a sequence of commands this happens
quite often. To avoid that a command from before the
":echo" causes a redraw afterwards (redraws are often
postponed until you type something), force a redraw
with the |:redraw| command. Example: </p>
<blockquote>
<p>:new | redraw | echo "there is a new window"</p>
</blockquote>
</blockquote>