擅长:python、mysql、java
<p>您可以使用<code>itertools.accumulate</code>轻松完成此操作</p>
<pre><code>>>> from itertools import accumulate
>>> s = "This is my question for you"
>>> list(accumulate(s.split()))
['This', 'Thisis', 'Thisismy', 'Thisismyquestion', 'Thisismyquestionfor', 'Thisismyquestionforyou']
</code></pre>