擅长:python、mysql、java
<pre><code>x=[['these are some words'], ['these are some more words'], ['these are even more words'], ['these are the last words']]
print [i[0].split() for i in x]
</code></pre>
<p>输出:<code>[['these', 'are', 'some', 'words'], ['these', 'are', 'some', 'more', 'words'], ['these', 'are', 'even', 'more', 'words'], ['these', 'are', 'the', 'last', 'words']]</code></p>
<p>简单的<code>list comprehension</code>可以帮你完成。在</p>