擅长:python、mysql、java
<p>除了其他优秀的答案,我还提出了一个小实验</p>
<pre><code>In [1]: import numpy as np
In [2]: a = np.random.random((3))
In [3]: b = np.random.random((3,5))
In [4]: print a; print b
[ 0.79029173 0.94967409 0.92041 ]
[[ 0.06362335 0.89737425 0.68929303 0.54940466 0.18666093]
[ 0.63062331 0.79704639 0.6342981 0.32551241 0.92139038]
[ 0.0389163 0.79205812 0.09504207 0.19657025 0.64401272]]
In [5]:
</code></pre>