擅长:python、mysql、java
<p>您可以使用<a href="https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.applymap.html" rel="nofollow noreferrer">^{<cd1>}</a>:</p>
<pre><code>df = pd.DataFrame({'col1': ['afs', 'chk', 'est', 'app'],
'col2': ['ofcr', 'guar', 'ltv', 'gender'],
'col3': ['code', 'mod', 'xxx', 'zzz']})
dct = {'ofcr':'officer','chk':'check','mod':'modification','est':'estimated','app':'application', 'gender':'gender'}
print(df.applymap(lambda x: dct.get(x, x + '-UNKNOWN')))
</code></pre>
<p>印刷品:</p>
<pre><code> col1 col2 col3
0 afs-UNKNOWN officer code-UNKNOWN
1 check guar-UNKNOWN modification
2 estimated ltv-UNKNOWN xxx-UNKNOWN
3 application gender zzz-UNKNOWN
</code></pre>