擅长:python、mysql、java
<p>append返回追加的df,您需要将最后一行更改为:</p>
<p><code>categoriesDf = categoriesDf.append(newCategoriesDf, ignore_index = True)</code></p>
<p><a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.append.html" rel="nofollow noreferrer">https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.append.html</a></p>