如何随机化数据帧中多个列中的值-以便在共享时不知道原始值或

import pandas as pd
import numpy as np

df = pd.DataFrame({'列1': [1, 2, 3, 4, 5],
                   '列2': ['A', 'B', 'C', 'D', 'E'],
                   '列3': ['apple', 'banana', 'orange', 'grape', 'kiwi']})

def randomize_column(column):
    unique_values = column.unique()
    np.random.shuffle(unique_values)
    return column.map(dict(zip(unique_values, np.arange(len(unique_values)))))
    
df['列1'] = randomize_column(df['列1'])
df['列2'] = randomize_column(df['列2'])
df['列3'] = randomize_column(df['列3'])

print(df)