擅长:python、mysql、java
<p>您可以使用下面的替换来完成此操作</p>
<pre class="lang-py prettyprint-override"><code>df = pd.DataFrame([['ABS', '45'], ['CDC', '23'], ['POP', '15']], columns=('Col1', 'Col2'))
aa = {'A':'AD','P':'PL','C':'LC'}
pat = "|".join(aa.keys())
df["Col1"].str.replace(pat, lambda x: aa.get(x[0], x[0]))
</code></pre>