仅将pandas行的所有字符串值作为列表添加到新列中

import pandas as pd

data = {'col1': ['abc', 'def', 'ghi'],
        'col2': [1, 2, 3],
        'col3': ['xyz', 'lmn', 'pqr']}
df = pd.DataFrame(data)

string_values = []

for index, row in df.iterrows():
    string_values.extend([value for value in row if isinstance(value, str)])

df['new_col'] = string_values

import pandas as pd

data = {'col1': ['abc', 'def', 'ghi'],
        'col2': [1, 2, 3],
        'col3': ['xyz', 'lmn', 'pqr']}
df = pd.DataFrame(data)

string_values = []
for index, row in df.iterrows():
    string_values.extend([value for value in row if isinstance(value, str)])

df['new_col'] = string_values