擅长:python、mysql、java
<p>使用<code>.</code>拆分<code>filename</code>,并使用索引访问第一个元素。你知道吗</p>
<pre><code>import pandas as pd
df = pd.DataFrame({'FileName':['892e7c8382943342a29a6ae5a55f2272532d8e04.exe.asm',
'2d42c1b2c33a440d165683eeeec341ebf61218a1.exe.asm',
'1fbab6b4566a2465a8668bbfed21c0bfaa2c2eed.exe.asm']})
exekey = [i.split(".")[0] for i in df['FileName']]
print(exekey)
</code></pre>
<p><strong>备用方式</strong>:</p>
<pre><code>exekey2 = df['FileName'].apply(lambda x: x.split(".")[0]).tolist()
</code></pre>
<p>输出:</p>
<pre><code>['892e7c8382943342a29a6ae5a55f2272532d8e04', '2d42c1b2c33a440d165683eeeec341ebf61218a1', '1fbab6b4566a2465a8668bbfed21c0bfaa2c2eed']
</code></pre>