python 本周，上周，本月，上月，本

发布时间：2019-08-27 08:05:12编辑：auto阅读（2167）

    #coding=utf-8
     
    import datetime
    from datetime import timedelta
     
    now = datetime.datetime.now()
     
    #今天
    today = now
     
    #昨天
    yesterday = now - timedelta(days=1)
     
    #明天
    tomorrow = now + timedelta(days=1)<br><br>#当前季度
    		 
    now_quarter = now.month / 3 if now.month % 3 == 0 else now.month / 3 + 1
    #本周第一天和最后一天
    this_week_start = now - timedelta(days=now.weekday())
    this_week_end = now + timedelta(days=6-now.weekday())
     
    #上周第一天和最后一天
    last_week_start = now - timedelta(days=now.weekday()+7)
    last_week_end = now - timedelta(days=now.weekday()+1)
     
    #本月第一天和最后一天
    this_month_start = datetime.datetime(now.year, now.month, 1)
    this_month_end = datetime.datetime(now.year, now.month + 1, 1) - timedelta(days=1)
     
    #上月第一天和最后一天
    last_month_end = this_month_start - timedelta(days=1)
    last_month_start = datetime.datetime(last_month_end.year, last_month_end.month, 1)
     
    #本季第一天和最后一天
    month = (now.month - 1) - (now.month - 1) % 3 + 1
    this_quarter_start = datetime.datetime(now.year, month, 1)
    this_quarter_end = datetime.datetime(now.year, month + 3, 1) - timedelta(days=1)
     
    #上季第一天和最后一天
    last_quarter_end = this_quarter_start - timedelta(days=1)
    last_quarter_start = datetime.datetime(last_quarter_end.year, last_quarter_end.month - 2, 1)
     
    #本年第一天和最后一天
    this_year_start = datetime.datetime(now.year, 1, 1)
    this_year_end = datetime.datetime(now.year + 1, 1, 1) - timedelta(days=1)
     
    #去年第一天和最后一天
    last_year_end = this_year_start - timedelta(days=1)
    last_year_start = datetime.datetime(last_year_end.year, 1, 1)

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