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<p>我在尝试将文本文件转换为由逗号分隔的列表列表时遇到问题。基本上,我想:</p>
<pre><code>DATE OF OCCURRENCE,WARD,LONGITUDE,LATITUDE
06/04/2011,3,-87.61619704286184,41.82254380664193
06/04/2011,20,-87.62391924557963,41.79367531770095
</code></pre>
<p>看起来像:</p>
<pre><code>[["DATE OF OCCURRENCE", "WARD", "LONGITUDE" , "LATITUDE"],
["06/04/2011", "3", "-87.61619704286184", "41.82254380664193"],
["06/04/2011", "20", "-87.62391924557963", "41.79367531770095"]]
</code></pre>
<p>这是我目前掌握的代码:</p>
<pre><code>row = []
crimefile = open(fileName, 'r')
for line in crimefile.readlines():
row.<a href="https://www.cnpython.com/list/append" class="inner-link">append</a>([line])
for i in line.split(","):
row[-1].append(i)
</code></pre>
<p>但是,这让我得到了一个结果:</p>
<pre class="lang-py prettyprint-override"><code>[['DATE OF OCCURRENCE,WARD,LONGITUDE,LATITUDE\n', 'DATE OF OCCURRENCE', 'WARD', 'LONGITUDE', 'LATITUDE\n'],
['06/04/2011,3,-87.61619704286184,41.82254380664193\n', '06/04/2011', '3', '-87.61619704286184', '41.82254380664193\n'],
['06/04/2011,20,-87.62391924557963,41.79367531770095', '06/04/2011', '20', '-87.62391924557963', '41.79367531770095']]
</code></pre>
<p>我只想把第一部分去掉,换成第二部分。我该怎么做?</p>