Python如何在包含列表作为元素的数据帧中删除不需要的逗号

import pandas as pd

data = {'col1': ['a', 'b,', 'c'], 'col2': ['d,', 'e', 'f']}
df = pd.DataFrame(data)

df = df.apply(lambda x: x.str.replace(',', ''))

import pandas as pd

data = {'col1': ['a', 'b,', 'c'], 'col2': ['d,', 'e', 'f']}
df = pd.DataFrame(data)

df = df.apply(lambda x: x.str.replace(',', ''))