擅长:python、mysql、java
<p>只需使用<strong><a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.str.contains.html" rel="nofollow noreferrer">^{<cd1>}</a></strong>即可:</p>
<pre><code>In [657]: df['Sequence'].str.contains('WOD')
Out[657]:
0 False
1 True
2 True
Name: Sequence, dtype: bool
</code></pre>
<p>或者,您可以使用<strong><a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.str.find.html" rel="nofollow noreferrer">^{<cd2>}</a></strong>:</p>
<pre><code>In [658]: df['Sequence'].str.find('WOD')
Out[658]:
0 -1
1 1
2 1
Name: Sequence, dtype: int64
</code></pre>
<p>失败时返回<code>-1</code></p>