python时间戳转化,python时间戳转数字

项目github地址：bitcarmanlee easy-algorithm-interview-and-practice
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1.常用的模块 from datetime import datetimeimport timefrom dateutil.parser import parse 2.得到当前时间 def getCurrentTime(): now = datetime.now() print(now) print(type(now))

结果为

2020-05-07 09:39:02.318002<class 'datetime.datetime'> 3.得到datetime对象 def genDateTimeObj(): date = datetime(2020, 4, 19, 15, 30) print(date) print(type(date)) 2020-04-19 15:30:00<class 'datetime.datetime'> 4.datetime转时间戳 def datetime_2_timestamp(): now = datetime.now() now_timetuple = now.timetuple() now_second = time.mktime(now_timetuple) now_millisecond = int (now_second * 1000 + now.microsecond / 1000) print(now.timestamp()) print(now_millisecond) 1588815680.1009481588815680100

注意如果直接用timestamp()方法得到的是一个浮点数，且时间戳是十位，单位为秒。下面的方法得到的时间戳为十三位，毫秒。

5.时间戳转datetime def timestamp_2_datetime(): timestamp = 1588761521787 / 1000 date = datetime.fromtimestamp(timestamp) print(date) 2020-05-06 18:38:41.787000 6.datetime转字符串 def datetime_2_str(): now = datetime.now() date = now.strftime('%Y-%m-%d %H:%M:%S') print(date) 2020-05-07 09:44:22 7.字符串转datetime def str_2_datetime(): datestr = "2020-05-06 18:42:26" date = datetime.strptime(datestr, "%Y-%m-%d %H:%M:%S") print(date) print(type(date)) 2020-05-07 09:44:22 8.求两个时间差 def get_interview(): t1 = "2020-05-05 23:56:45" t2 = "2020-05-06 00:00:31" date1 = parse(t1) date2 = parse(t2) result = (date2 - date1).total_seconds() print(result) 226.0

上面的方法，求得的是两个时间之间差的秒数。