擅长:python、mysql、java
<pre><code>import numpy as np
a = np.array([[1,3,4],[1,2,3],[1,2,1]])
b = np.array([10,20,30])
c = np.hstack((a, np.atleast_2d(b).T))
</code></pre>
<p>返回<code>c</code>:</p>
<pre><code>array([[ 1, 3, 4, 10],
[ 1, 2, 3, 20],
[ 1, 2, 1, 30]])
</code></pre>