python根据日期返回星期几

参考网址：http://www.jb51.net/article/68962.htm

代码简单如下：

import  time,datetime
def  get_week_day(date):
  week_day_dict  =  {
    0  :  '星期一' ,
    1  :  '星期二' ,
    2  :  '星期三' ,
    3  :  '星期四' ,
    4  :  '星期五' ,
    5  :  '星期六' ,
    6  :  '星期天' ,
  }
  day  =  date.weekday()
  return  week_day_dict[day]

print (get_week_day(datetime.datetime.now()))

输出结果为：星期一

 

 

进一步应用：

today = datetime.date.today()
yesterday = today - datetime.timedelta(days=1)
#获取昨天是星期几
thistime=yesterday.isoweekday()

if thistime==1:
a="周一"
elif thistime==2:
a="周二"
elif thistime==3:
a="周三"
elif thistime==4:
a="周四"
elif thistime==5:
a="周五"
elif thistime==6:
a="周六"
elif thistime==7:
a="周日"

print(a)

 

 

转载于:https://www.cnblogs.com/gonghongwei/p/9461082.html