擅长:python、mysql、java
<p>没有使用<code>ntpath.basename</code>的正则表达式方法:</p>
<pre class="lang-py prettyprint-override"><code>import pandas as pd
import ntpath
df = pd.DataFrame({'name':[r'domain1\computername1']})
df["name"] = df["name"].apply(lambda x: ntpath.basename(x))
</code></pre>
<p><strong>结果</strong>:<code>computername1</code></p>
<p>与<code>rsplit</code>一起:</p>
<pre class="lang-py prettyprint-override"><code>df["name"] = df["name"].str.rsplit('\\').str[-1]
</code></pre>