擅长:python、mysql、java
<pre><code>dfz['Unnamed: 1'] = dfz['Unnamed: 1'].str.replace('-','')
</code></pre>
<p>记得把它分配回来。
文档<a href="https://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.str.replace.html" rel="nofollow noreferrer">here</a></p>