本文转载自脚本之家,源网址为:https://www.jb51.net/article/147429.htm 一、Python中日期时间模块datetime介绍 (一)、datetime模块中包含如下类: (二)、datetime模块中包含的常量 二、date类 (一)、date对象构成 1、dat
time([hour[, minute[, second[, microsecond[, tzinfo]]]) --> a time object timedelta(days=1,hours=2,minutes=3,seconds=4) calendar.monthrange(year, month):判断由year和month组成月份,返回该月第一天为周几和该月总共有多少天 1##取日期列表2fromdatetimeimportdatetime,date,timedelta3defget_range...
importcalendar from datetimeimportdatetime c=calendar.Calendar(firstweekday=calendar.SUNDAY)monthcal=c.monthdatescalendar(datetime.today().year,datetime.today().month)try:tues=[dayforweekinmonthcalfordayinweekifday.weekday()==calendar.TUESDAYand day.month==datetime.today().month][0]print(tues)exce...
>>> from datetime import date, time, datetime >>> date(year=2020, month=1, day=31) datetime.date(2020, 1, 31) >>> time(hour=13, minute=14, second=31) datetime.time(13, 14, 31) >>> datetime(year=2020, month=1, day=31, hour=13, minute=14, second=31) datetime.datetime(202...
from datetime import date def calculate_age(born): today = date.today() try: birthday = born.replace(year=today.year) except ValueError: birthday = born.replace(year=today.year, month=born.month + 1, day=1) if birthday > today: return today.year - born.year - 1 else: return today....
importtimefromdatetimeimportdatetime# 将Unix时间戳转换为datetime对象dt_object=datetime.fromtimestamp(unix_timestamp)# 格式化输出日期和时间formatted_datetime=dt_object.strftime('%Y-%m-%d%H:%M:%S')print(f"格式化后的时间:{formatted_datetime}")
("Period2...\n", period2) # get the year from two Period objects res1 = period1.year res2 = period2.year # Return the year from the two Period objects print("\nDisplay the Year from the 1st Period object ...\n", res1) print("\nDisplay the Year from the 2nd Period object.....
min = datetime.date(1, 1, 1) -- 最小的年、月、日的数值 resolution = datetime.timedelta(1) -- 时间间隔单位为1天 包含的函数: date(year, month, day) -- 构造函数,接受年、月、日三个参数,返回一个date object ctime() -- 返回字符串格式的时间表示格式。不接受参数 ...
split()) df[['datetime', 'from']] = df['source'].str.extract('(\d+年\d+月\d+日\d+:\d+)[\t|\n]+?(\w+)', expand=False) print(df[['datetime', 'from']]) # 因为df['datetime']是object格式,为了后期的取值,例:取年df['datetime'].map(lambda e : e.year) 我们需要把格式...
(self.get_queryset(), name)(*args, **kwargs) File "/home/python/.virtualenvs/py3_django_1.11/lib/python3.5/site-packages/django/db/models/query.py", line 380, in get self.model._meta.object_name book.models.DoesNotExist: BookInfo matching query does not exist. >>> BookInfo.objects....