python 获取过去几天,过去几个月,过去几年的时间列表
在平时的开发中,需要获取最近几个月,最近几年或者最近几天的时间列表,本文使用了arrow去实现了这几个过程。
def get_day(num): day_list = [] a = arrow.now() # 当前本地时间 for i in range(0, num + 1): yearmonth = a.shift(days=-i).format("YYYY-MM-DD") day_list.append(yearmonth) return day_list print(get_day(10)) def get_month(num): month_list = [] a = arrow.now() # 当前本地时间 for i in range(0,num+1): yearmonth = a.shift(months=-i).format("YYYYMM") month_list.append(yearmonth) return month_list print(get_month(10)) def get_year(num): year_list = [] a = arrow.now() # 当前本地时间 for i in range(0,num+1): year = a.shift(years=-i).format("YYYY") year_list.append(year) return year_list print(get_year(10))
输出结果
C:\Python37\python3.exe D:/shannanai_spider/test/test.py ['2021-05-29', '2021-05-28', '2021-05-27', '2021-05-26', '2021-05-25', '2021-05-24', '2021-05-23', '2021-05-22', '2021-05-21', '2021-05-20', '2021-05-19'] ['202105', '202104', '202103', '202102', '202101', '202012', '202011', '202010', '202009', '202008', '202007'] ['2021', '2020', '2019', '2018', '2017', '2016', '2015', '2014', '2013', '2012', '2011'] Process finished with exit code 0
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