我们可以使用timedelta对象来表示时间差,然后将其应用到日期对象上。 # 引用形式的描述信息:导入timedelta模块fromdatetimeimporttimedelta# 创建一个时间差对象,表示要减去的年份years_to_subtract=timedelta(days=365*years_to_subtract)# 从日期对象中减去指定的年份new_date=date_obj-years_to_subtract 1. 2. 3. ...
=target_month:# gone too farone_month_later-=one_daybreakreturnone_month_laterdefsubtract_one_month(t):"""Return a `datetime.date` or `datetime.datetime` (as given) that isone month later.Note that the resultant day of the month might change if the followingmonth has fewer days:>>> ...
import calendar from datetime import datetime c = calendar.Calendar(firstweekday=calendar.SUNDAY) monthcal = c.monthdatescalendar(datetime.today().year, datetime.today().month) try: tues = [day for week in monthcal for day in week if day.weekday() == calendar.TUESDAY and day.month == ...
Python的datetime可以处理2种类型的时间,分别为offset-naive和offset-aware。前者是指没有包含时区信息的时间,后者是指包含时区信息的时间,只有同类型的时间才能进行减法运算和比较。datetime模块的函数在默认情况下都只生成offset-naive类型的datetime对象,例如now()、utcnow()、fromtimestamp()、utcfromtimestamp()和...
month=12year-=1# check if last day of monthday=min(date.day,[31,29ifyear%4==0andnotyear%400==0else28,31,30,31,30,31,31,30,31,30,31][month-1])date=date.replace(year=year,month=month,day=day)# add or subtract daysifdays:date+=datetime.timedelta(days=days)returndate.strftime(...
from datetime import datetime 解析日期和时间字符串 date_string = "20220101 12:00:00" parsed_date = datetime.strptime(date_string, "%Y%m%d %H:%M:%S") print(parsed_date) 4、计算日期和时间的差值 我们可以使用datetime对象的subtract()方法来计算两个日期和时间之间的差值,这个方法返回一个新的datetime...
先把生日转换成年龄，然后计算平均年龄，最后通过平均年龄换算成生日。
Month: 10 Year: 2019 从Date 获取每月的某天和一周的某天 让我们再提取一些信息,因为这真的是一个很常见的任务。这一次,我们将尝试从my_date中获取月份的日期和星期的日期。Datetime会用它的 .weekday()函数给我们一个星期的日期,但是我们可以使用日历模块和一个叫day_name的方法将其转换为文本格式(例如星期一...
from datetimeimportdate defcalculate_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)ifbirthday>today:returntoday.year-born.year-1else:returntoday.year-born.yearprint(calculate_age(date(2001,3...
fromdatetime importdate def calculate_age(born): today=date.today() try: birthday=born.replace(year=today.year) exceptValueError: birthday=born.replace(year=today.year,month=born.month+1,day=1) if birthday>today: returntoday.year-born.year-1 ...