创建一个以A、B、C、D、E为index的长度为5的Series并获取index的ndarray语句。

import pandas as pd

data = [10, 20, 30, 40, 50] index = ['A', 'B', 'C', 'D', 'E']

series = pd.Series(data, index=index) index_array = series.index.values

print(index_array)