python dataframe打乱行

import pandas as pd
data1 = {
    "a":[1,2,3,12,13,14],
    "b":[4,5,6,15,16,17],
    "c":[7,8,9,18,19,20]
}
df=pd.DataFrame(data1)

from sklearn.utils import shuffle
df = shuffle(df)

效果：

（打乱前）

（打乱后）