<p>使用<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.str.rstrip.html#pandas-series-str-rstrip" rel="nofollow noreferrer">^{<cd1>}</a>:</p>
<pre><code>df['vals'] = df['vals'].str.rstrip(',h')
</code></pre>
<pre class="lang-none prettyprint-override"><code> vals
0 k,g,h,l,j,l,j,k,hg,hg,fg,hk
1 g,j,lm,l,l,kl,kj,hg,hg,f,h,kh,j,h,g,g,g
2 f,f,f,f,f,e,g,h,h,hg,gf,f
3 ghk,h,gf,l,lm,lm,kjk,j,f
</code></pre>
<hr/>
<p><code>df</code>使用了:</p>
<pre><code>df = pd.DataFrame({
'vals': [
'k,g,h,l,j,l,j,k,hg,hg,fg,hk,h,h,h,h,h,h,h,h',
'g,j,lm,l,l,kl,kj,hg,hg,f,h,kh,j,h,g,g,g,h,h',
'f,f,f,f,f,e,g,h,h,hg,gf,f,h,h,h,h,h,h,h,h,h',
'ghk,h,gf,l,lm,lm,kjk,j,f,h,h,h,h,h,h,h,h,h']
})
</code></pre>
<pre class="lang-none prettyprint-override"><code> vals
0 k,g,h,l,j,l,j,k,hg,hg,fg,hk,h,h,h,h,h,h,h,h
1 g,j,lm,l,l,kl,kj,hg,hg,f,h,kh,j,h,g,g,g,h,h
2 f,f,f,f,f,e,g,h,h,hg,gf,f,h,h,h,h,h,h,h,h,h
3 ghk,h,gf,l,lm,lm,kjk,j,f,h,h,h,h,h,h,h,h,h
</code></pre>