擅长:python、mysql、java
<p>我最喜欢的,如果你够新的话:</p>
<pre><code>Python 3.2.1 (default, Jul 12 2011, 22:22:01)
[GCC 4.2.1 (Apple Inc. build 5666) (dot 3)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import itertools
>>> itertools.accumulate([1,2,3,4])
<itertools.accumulate object at 0x1006baad0>
>>> list(itertools.accumulate([1,2,3,4]))
[1, 3, 6, 10]
</code></pre>
<p><a href="http://docs.python.org/dev/library/itertools.html#itertools.accumulate" rel="noreferrer">accumulate</a>还接受一个函数参数[尽管是3.3],但它是最新的:</p>
^{pr2}$