擅长:python、mysql、java
<p>既然你在这里更新脚本</p>
<p>而不是</p>
<pre><code>if argument == 'next':
position += 1
if position == len(colorschemes) - 1:
position = 0
elif argument == 'prev':
position -= 1
if position == -1:
position = len(colorschemes) - 1
</code></pre>
<p>也许吧</p>
^{pr2}$