擅长:python、mysql、java
<p>对于矢量化解决方案,可以使用<code>np.char</code>模块:</p>
<pre><code>a = np.array([['4', 'red crayon'],
['2', 'purple people eater'],
['6', 'red hammer'],
['12', 'green screwdriver']])
np.char.find(a[:, 1], 'red') > -1
# array([ True, False, True, False], dtype=bool)
</code></pre>