擅长:python、mysql、java
<p>在复合列表中维护对<code>friendlies</code>和<code>enemies</code>的引用:</p>
<pre><code>everyone = [friendlies, enemies]
# ^
</code></pre>
<p>compisite列表的索引0和1将分别引用<code>friendlies</code>和<code>enemies</code>。你知道吗</p>
<p><code>friendlies + enemies</code>创建一个新的列表,它不是您想要的。你知道吗</p>
<hr/>
<p>一种更具可读性的方法是将<code>everyone</code>编成字典:</p>
<pre><code>everyone = {'friendlies': friendlies, 'enemies': enemies}
</code></pre>
<p>可用于:</p>
<pre><code>>>> friendlies = []
>>> enemies = []
>>> everyone = {'friendlies': friendlies, 'enemies': enemies}
>>> friendlies.append("something")
>>> everyone['friendlies']
['something']
</code></pre>