擅长:python、mysql、java
<p>啊哈!在</p>
<p><a href="https://stackoverflow.com/questions/1208118/using-numpy-to-build-an-array-of-all-combinations-of-two-arrays">Using numpy to build an array of all combinations of two arrays</a></p>
<p>使用itertool.产品一个!在</p>