python中的Series索引

pandas中的Series可使用字符串型作为索引

import pandas as pd
import numpy as np
from pandas import Series
price=np.linspace(10,50,5,dtype=np.int32)              
#用numpy中的linspace在区间【10,50】平均生成五个数，类型为numpy中的int32型
series_fruit=Series(price,index=mlist)             #创建Series，指定mlist作为索引
series_fruit

 

按照索引0,1,2,3....切片

series_fruit[1:4]

按照mlist切片 ，‘pinapple’到'peach’

series_fruit['pineapple':'peach']
#Index(['orange', 'pineapple', 'blueberry', 'pear', 'peach'], dtype='object'