擅长:python、mysql、java
<p>使用集合中的计数器并打印值。请检查以下代码以供参考。在</p>
<pre><code>import pandas as pd
#for counting the elements
from collections import Counter
#dataframe with list values in column B
df = pd.DataFrame([[1,['apple','mango','apple'],3],[1,['mango','mango','soni'],3]],columns=['A','B','C'])
#formatting the output post counting
for i,row in df.iterrows():
c = Counter(row['B'])
print(f'for index {i}')
for k in c.keys():
print(f'{k}: {c.get(k)}')
</code></pre>