擅长:python、mysql、java
<p>您可以组合换位和重塑操作:</p>
<pre><code>In [1878]: x=arange(24).reshape(4,3,2)
In [1879]: (_,n,m)=x.shape
In [1880]: x.reshape(2,2,n,m).transpose(0,2,1,3).reshape(2*n,2*m)
Out[1880]:
array([[ 0, 1, 6, 7],
[ 2, 3, 8, 9],
[ 4, 5, 10, 11],
[12, 13, 18, 19],
[14, 15, 20, 21],
[16, 17, 22, 23]])
</code></pre>