时间：2021-05-19 09:40:02 | 栏目：Python代码 | 点击：次
如下所示：
>>> import numpy as np
>>> import pandas as pd
>>> index=np.array([2,4,6,8,10])
>>> data=np.array([3,5,7,9,11])
>>> data=pd.DataFrame({'num':data},index=index)
>>> print(data)
num
2 3
4 5
6 7
8 9
10 11
>>> select_index=index[index>5]
>>> print(select_index)
[ 6 8 10]
>>> data['num'].loc[select_index]
6 7
8 9
10 11
Name: num, dtype: int32
>>>
注意，不能用iloc，iloc是将序列当作数组来访问，下标又会从0开始：
>>> data['num'].iloc[2:5] 6 7 8 9 10 11 Name: num, dtype: int32 >>> data['num'].iloc[[2,3,4]] 6 7 8 9 10 11 Name: num, dtype: int32 >>>