老伍按以下方式生成数据: import pandas as pd dt={'one':pd.Series([3,2,1],index=['c','b','a']), 'two':pd.Series([9,8,7,6],index=['a','b','c','d'])} d=pd.DataFrame(dt) c=d.index c=d.values c=d.columns c 请问输出结果为:
A.Index(['a', 'b', 'c', 'd'], dtype='object')
B.array([[ 1., 9.], [ 2., 8.], [ 3., 7.], [nan, 6.]])
C.Index(['one', 'two'], dtype='object')
D.信你个鬼,老伍这个糟老头子坏得很,没有输出!