Python_DataFrame_selection

Python中DataFrame的常用选择操作示例

pd1=pd.DataFrame({'name':['a','b','c','d'],'age':[20,18,19,30],'score':[100,99,98,97],'class':[2000,2001,2002,2003]})
pd1

	name	age	score	class
0	a	20	100	2000
1	b	18	99	2001
2	c	19	98	2002
3	d	30	97	2003

type(pd1[0:3])
pandas.core.frame.DataFrame


# 切片操作 ， 0 ~ 2 行   DF是行索引
pd1[0:3]         

	name	age	score	class
0	a	20	100	2000
1