擅长:python、mysql、java
<p><code>pmc.polySphere()</code>返回包含两个元素的序列。<a href="https://docs.python.org/2/tutorial/datastructures.html#tuples-and-sequences" rel="nofollow">The first is assigned to ^{<cd2>}, and the second to ^{<cd3>}.</a></p>
<pre><code>>>> a, b = [1, 2]
>>> a
1
>>> b
2
</code></pre>