擅长:python、mysql、java
<p>您可以使用嵌入在list comp中的<a href="https://docs.python.org/3/library/functions.html#filter" rel="nofollow">^{<cd1>}</a>内置项。你知道吗</p>
<blockquote>
<p>Note: In Python 3 <code>filter</code> returns an iterator, so you will need to call <code>tuple()</code> on it. (unlike in py2)</p>
</blockquote>
<pre><code>pData = [['-300.2', '600.5'],['150.12', '280.7'],['19.19', '286.56']]
rData = []
sData = []
from itertools import zip_longest # izip_longest for python 2
[tuple(filter(None, col)) for col in zip_longest(pData, rData, sData)]
</code></pre>
<p>结果:</p>
<pre><code>[(['-300.2', '600.5'],), (['150.12', '280.7'],), (['19.19', '286.56'],)]
</code></pre>