在pandas中，将包含逗号分隔字符串的2列合并为1列

import pandas as pd

data = {'col1': ['a,b', 'c,d', 'e,f'],
        'col2': ['g,h', 'i,j', 'k,l']}
df = pd.DataFrame(data)

df['merged_col'] = df.apply(lambda row: row['col1'] + ',' + row['col2'], axis=1)

import pandas as pd

data = {'col1': ['a,b', 'c,d', 'e,f'],
        'col2': ['g,h', 'i,j', 'k,l']}
df = pd.DataFrame(data)

df['merged_col'] = df.apply(lambda row: row['col1'] + ',' + row['col2'], axis=1)

print(df)

  col1 col2 merged_col
0  a,b  g,h      a,b,g,h
1  c,d  i,j      c,d,i,j
2  e,f  k,l      e,f,k,l