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.columns c=d.values c=d.index 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！
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.columns c=d.values c=d.index 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！
参考答案和解析
B
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