擅长:python、mysql、java
<pre><code>import numpy as np
a = np.asarray([1, 3, 4, 1, 5, 2])
print( a[::2].mean() ) #All Odd Elements
print( a[1::2].mean() ) #All Even Elements
</code></pre>
<p><strong>输出:</strong></p>
<pre><code>3.33333333333
2.0
</code></pre>
<p><em>根据评论编辑(每24个元素)</em></p>
<pre><code>import numpy as np
a = range(1, 73)
for i in map(None,*[iter(a)]*24):
print( np.array(i).mean() )
</code></pre>
<p><strong>输出:</strong></p>
<pre><code>12.5
36.5
60.5
</code></pre>