monthrange(year, month)[1] return last_day for year in [2017,2018,2019]: for month in [1,2,3,4,5,6,7,8,9,10,11,12]: date_str=(f"{year}-{month}-{get_last_day(year, month)}") date_obj = datetime.strptime(date_str, '%Y-%m-%d') new_date_str = date_obj.strftime('...
然后,获取当前日期:current_date = datetime.date.today() 接下来,计算上个月的第一天日期:first_day_of_last_month = datetime.date(current_date.year, current_date.month - 1, 1) 最后,计算上个月的最后一天日期:last_day_of_last_month = first_day_of_last_month - datetime.timedelta(days=1) 通...
importcalendarfromdatetimeimportdatetimefromdateutil.relativedeltaimportrelativedeltaclassDateTimeUtil():defget_cur_month(self):#获取当前月returndatetime.now().strftime("%Y-%m")defget_last_month(self, number=1):#获取前几个月month_date = datetime.now().date() - relativedelta(months=number)returnmonth...
importdatetimeimportcalendardefget_last_month_end_date():today=datetime.date.today()first_day_of_current_month=today.replace(day=1)last_day_of_last_month=first_day_of_current_month-datetime.timedelta(days=1)returnlast_day_of_last_month last_month_end_date=get_last_month_end_date()print("上...
上面的代码首先引入了calendar和datetime模块,然后定义了一个函数get_last_day_of_month(year, month),接收年份和月份作为参数,返回该月的最后一天日期。 使用dateutil库 除了datetime库,还可以使用第三方库dateutil来获取各月末日期。dateutil库提供了更加灵活和简洁的方式来处理日期和时间。下面是使用dateutil库获取各...
import datetime import calendar def get_date_of_last_month(form="%Y-%m-%d"): """ 获取上月开始结束日期 :param form 返回值显示格式 :return: str,date tuple """ today = datetime.date.today() year = today.year month = today.month if month == 1: year -= 1 month = 12 else: month...
from time import strftime, localtime from datetime import timedelta, date import datetime import calendar def addzero(n): nabs = abs(int(n)) if (nabs < 10): return "0" + str(nabs) else: return nabs def get_days_of_month(year, mon): return calendar.monthrange(year, mon)[1] def ge...
from datetime import datetime from datetime import timedelta import calendar def getLastDayOfLastMonth(): d = datetime.now() c = calendar.Calendar() year = d.year month = d.month if month == 1 : month = 12 year -= 1 else : month -= 1 days = calendar.monthrange(year, month)[1]...
获取「今天」 >>> today = datetime.date.today() # 2. 获取当前月的第一天 >>> first = today.replace(day=1) # 3. 减一天,得到上个月的最后一天 >>> last_month = first - datetime.timedelta(days=1) # 4. 格式化成指定形式 >>> print(last_month.strftime("%Y%m")) 201807 >>> 这是有...
给出年月日计算该日是该年的第几天C语言#includeintmain(){intsum_day(intmonth,intday);intleap(intyear);intyear,month,day,days;printf("inputdate(year,month,day):");scanf("%d,%d,%d",year,month,day);... 继续访问 ? 数据库课程设计 c语言文件读写操作代码 html+css+js网页设计 ?写评论 ?