pandas中Timestamp类用法讲解

由于网上关于Timestamp类的资料比较少，而且官网上面介绍的很模糊，本文只是对如何创建Timestamp类对象进行简要介绍，详情请读者自行查阅文档。

以下有两种方式可以创建一个Timestamp对象：

1. Timestamp()的构造方法

import pandas as pdfrom datetime import datetime as dtp1=pd.Timestamp(2017,6,19)p2=pd.Timestamp(dt(2017,6,19,hour=9,minute=13,second=45))p3=pd.Timestamp("2017-6-19 9:13:45")print("type of p1:",type(p1))print(p1)print("type of p2:",type(p2))print(p2)print("type of p3:",type(p3))print(p3)输出：('type of p1:', <class 'pandas.tslib.Timestamp'>)2017-06-19 00:00:00('type of p2:', <class 'pandas.tslib.Timestamp'>)2017-06-19 09:13:45('type of p3:', <class 'pandas.tslib.Timestamp'>)2017-06-19 09:13:45

2. to_datetime()方法

import pandas as pdfrom datetime import datetime as dtp4=pd.to_datetime("2017-6-19 9:13:45")p5=pd.to_datetime(dt(2017,6,19,hour=9,minute=13,second=45))print("type of p4:",type(p4))print(p4)print("type of p5:",type(p5))print(p5)输出：('type of p4:', <class 'pandas.tslib.Timestamp'>)2017-06-19 09:13:45('type of p5:', <class 'pandas.tslib.Timestamp'>)2017-06-19 09:13:45