擅长:python、mysql、java
<p>类似地,您可以通过<code>numpy.where</code>与<code>str.contains</code>结合来实现这一点:</p>
<pre><code>import numpy as np
df['sport'] = np.where(df['name'].str.contains('Al'), # Condition
df['sport'].str.replace('large', 'L', regex=True), # return if True
df['sport']) # return if False
</code></pre>
<pre><code>>>> df
name sport
0 Bob tennis small
1 Jane football medium
2 Alice basketball L
</code></pre>