擅长:python、mysql、java
<p>使用<code>.str</code>字符串访问器对数据帧执行字符串操作。尤其是,您需要<a href="http://pandas.pydata.org/pandas-docs/stable/generated/pandas.Series.str.len.html" rel="noreferrer">^{<cd2>}</a>:</p>
<pre><code>df['name_length'] = df['seller_name'].str.len()
</code></pre>
<p>结果输出:</p>
<pre><code> seller_name name_length
0 Rick 4
1 Hannah 6
</code></pre>