擅长:python、mysql、java
<p>如果使用numpy,也可以使用structure array:</p>
<pre><code>In [66]: struct = np.dtype([("name", np.object), ("age", np.int)])
a = np.array([("abc", 12), ("def", 20), ("xyz", 50)], dtype=struct)
a[0]
Out[66]: ('abc', 12)
In [67]: a[0]["name"]
Out[67]: 'abc'
In [68]: a["name"]
Out[68]: array([abc, def, xyz], dtype=object)
In [69]: a["age"]
Out[69]: array([12, 20, 50])
In [72]: a["age"][2]
Out[72]: 50
</code></pre>