擅长:python、mysql、java
<p><a href="https://docs.python.org/2/library/itertools.html#itertools.product">^{<cd1>}</a>函数将执行以下操作:</p>
<pre><code>>>> import itertools
>>> mydict = {'item1':[1,2,3],'item2':[10,20,30]}
>>> list(itertools.product(*mydict.values()))
[(10, 1), (10, 2), (10, 3), (20, 1), (20, 2), (20, 3), (30, 1), (30, 2), (30, 3)]
</code></pre>
<p>如果需要控制结果元组的顺序,可以这样做</p>
^{pr2}$