擅长:python、mysql、java
<p>您不需要映射,可以使用熊猫系列的<a href="https://pandas.pydata.org/pandas-docs/stable/text.html" rel="nofollow noreferrer">str</a>属性:</p>
<pre><code>(df[0].str.lstrip('[u')
.str.rstrip(']')
.str.replace("u'","")
.str.replace("'","")))
</code></pre>
<p>获得相同的结果,但不使用map</p>
<pre><code>0 one_element
1 two_elememts, two_elements
2 three_elements, three_elements, three_elements
Name: 0, dtype: object
</code></pre>