importdatetimedefget_monday_of_current_week():# 获取今天的日期today=datetime.date.today()# 计算今天是本周的第几天(周一是0,周日是6)day_of_week=today.weekday()# 计算最近的周一日期last_monday=today-datetime.timedelta(days=day_of_week)returnlast_monday# 输出本周一的日期print("本周一的日期是:...
monday=get_monday()print("当前时间的周一是:",monday) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 在这段代码中,我们定义了一个get_monday函数,用来获取当前时间的周一。首先我们使用datetime.date.today()方法获取当前日期,然后使用weekday()方法获取当前日期是星期几(星期一为0,星期二为1,以此类推)。接...
index(dayname) days_ago = (7 + day_num - day_num_target) % 7 if days_ago == 0: days_ago = 7 target_date = start_date - timedelta(days=days_ago) return target_date def last_friday(): print(datetime.today()) print(get_previous_byday('Monday')) print(get_previous_byday('Tues...
3. 获取一个月的天数 calendar.monthrange(year, month) 是一个Python内置函数，用于返回指定年份和月份...
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importdatetime today=datetime.date.today()last_monday=today-datetime.timedelta(days=today.weekday())coming_monday=today+datetime.timedelta(days=-today.weekday(),weeks=1)print("Today:",today)print("Last Monday:",last_monday)print("Coming Monday:",coming_monday) ...
# 将年和星期按两列分组聚合 In[109]:weekday=crime['REPORTED_DATE'].dt.weekday_name year=crime['REPORTED_DATE'].dt.year crime_wd_y=crime.groupby([year,weekday]).size()crime_wd_y.head(10)Out[109]:REPORTED_DATEREPORTED_DATE2012Friday8549Monday8786Saturday7442Sunday7189Thursday8440Tuesday8191...
The documentation is hosted at:https://dateutil.readthedocs.io/en/stable/ Code The code and issue tracker are hosted on GitHub:https://github.com/dateutil/dateutil/ Features Computing of relative deltas (next month, next year, next Monday, last week of month, etc); ...
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var day = new Date().getDay(); switch (day) { case 0: console.log("Sunday"); break; case 1: console.log("Monday"); break; default: console.log("...") } switch中的case子句通常都会加break语句,否则程序会继续执行后续case中的语句。