擅长:python、mysql、java
<p>你也可以用<a href="https://stackoverflow.com/questions/20639180/explanation-of-how-list-comprehension-works">comprehension</a>和<a href="https://stackoverflow.com/questions/13603361/python-reduce-explanation">reduce</a>来完成:</p>
<pre><code>[reduce(lambda x, y: x + y, item) for item in square]
</code></pre>