Python - datetime模块小结

以你之姓@ 2022-05-14 02:07 194阅读 0赞

模块小结如下：另外有[time模块小结][time]

from datetime import date, time, datetime, timedelta
    datetime.now()     # 当前日期元组
    datetime.today()   # 当前日期元组
    d1 = '2018-05-09 10:20:15'
    d2 = '2018-06-02 08:32:10'
    d1_tuple = datetime.strptime(d1,"%Y-%m-%d %H:%M:%S") # 把指定日期转成日期元组
    d2_tuple = datetime.strptime(d2,"%Y-%m-%d %H:%M:%S") # 把指定日期转成日期元组
    time_delta = d2_tuple - d1_tuple # 两个日期元组相减，得到timedelta对象，此对象包含days, secondes, microseconds属性
    datetime.fromtimestamp(1525918343.0) # 把时间戳转换成日期元组
    
    datetime.strftime(d1_tuple,'%Y-%m-%d %H:%M:%S') # 把日期元组转成格式化日期
    d1_tuple + timedelta(days=10) # 某日期10天后的日期元组
    (d1_tuple + timedelta(days=10)).strftime("%Y-%m-%d %H:%M:%S") # 把日期元组转成格式化日期
    d1_tuple.timetuple() # 把日期元组转成时间元组

from datetime import date, time, datetime, timedelta
    
    datetime.today() # 当前日期元组
    >>>datetime.datetime(2018, 8, 31, 16, 9, 20, 835155)
    
    datetime.today() + timedelta(days = -1) # 昨天日期元组
    >>>datetime.datetime(2018, 8, 30, 16, 12, 35, 303939)
    
    datetime.now()
    >>>datetime.datetime(2018, 8, 31, 16, 12, 54, 172760)
    
    a = datetime.now() # 当前日期元组
    datetime.strftime(a,'%Y-%m-%d %H:%M:%S') # 把日期元组转成格式化日期
    >>>'2018-08-31 16:13:55'
    
    datetime.strptime('2018-05-10 10:12:23','%Y-%m-%d %H:%M:%S') # 把指定日期转成日期元组
    >>>datetime.datetime(2018, 5, 10, 10, 12, 23)
    
    datetime.strptime('2018-05-10 10:12:23','%Y-%m-%d %H:%M:%S').timetuple() # 取得指定日期的时间元组
    >>>time.struct_time(tm_year=2018, tm_mon=5, tm_mday=10, tm_hour=10, tm_min=12, tm_sec=23, tm_wday=3, tm_yday=130, tm_isdst=-1)
    
    import time
    time.mktime(datetime.strptime('2018-05-10 10:12:23','%Y-%m-%d %H:%M:%S').timetuple()) # 取得指定日期的时间戳
    >>>1525918343.0

[time]: https://blog.csdn.net/uvyoaa/article/details/81329505