擅长:python、mysql、java
<pre><code>>>> class sl:
... def __getitem__(self, *keys): print keys
...
>>> s = sl()
>>> s[1:3:5]
(slice(1, 3, 5),)
>>> s[1:2:3, 1, 4:5]
((slice(1, 2, 3), 1, slice(4, 5, None)),)
>>>
</code></pre>