擅长:python、mysql、java
<p>使用<a href="https://docs.python.org/2/library/itertools.html" rel="nofollow">itertools</a>和<a href="https://pypi.python.org/pypi/funcy" rel="nofollow">funcy</a>的函数方法:</p>
<pre><code>from funcy import ichunks
from itertools import chain
s = "abcdefghi"
if len(s) % 2:
s += "x"
xs = [x[::-1] for x in chain(*[x[::-1] for x in ichunks(2, ichunks(2, s))])]
</code></pre>