擅长:python、mysql、java
<p>这就是<a href="https://docs.python.org/3/library/itertools.html#itertools.groupby" rel="nofollow">^{<cd1>}</a>的用途:</p>
<pre><code>>>> from itertools import groupby
>>> infected ="AATTTGCCAAA"
>>>
>>> [''.join(g) for _,g in groupby(infected)]
['AA', 'TTT', 'G', 'CC', 'AAA']
</code></pre>