datetime处理日期和时间

Posted 2020-10-09 blackboardf

1.

>>> from datetime import datetime
>>> datetime.now()
datetime.datetime(2017, 10, 1, 19, 25, 9, 835498)
>>> datetime.utcnow()
datetime.datetime(2017, 10, 1, 11, 25, 22, 523224)

>>> datetime(2017,5,23,12,20)
datetime.datetime(2017, 5, 23, 12, 20)

2.

from datetime import datetime
a=datetime.strptime(\'2017/9/30\',\'%Y/%m/%d\')
print(a)
a1=datetime.strptime(\'2017年9月30日星期六\',\'%Y年%m月%d日星期六\')
print(a1)
a2=datetime.strptime(\'2017年9月30日星期六8时42分24秒\',\'%Y年%m月%d日星期六%H时%M分%S秒\')
print(a2)
a3=datetime.strptime(\'9/30/2017\',\'%m/%d/%Y\')
print(a3)
a4=datetime.strptime(\'9/30/2017 8:42:50\',\'%m/%d/%Y %H:%M:%S\')
print(a4)

3.

from datetime import datetime
dt=datetime(2017,10,1,10,3,43)
a=dt.strtime(\'%Y年%m月%d日%A,%H时%M分%S秒\')
print(a)
b=dt.strtime(\'%A,%B %d,%Y\')
print(b)
c=dt.strtime(\'%m/%d/%Y %I:%M:%S%p\')
print(c)
d=dt.strtime(\'%B %d,%Y\')
print(d)

4.

from datetime import datetime
now=datetime(2017,9,30)
a=now.strftime(\'today is %Y,%m,%d\')
print(a)
b=now.strftime(\'today is the %w day of this week\')
print(b)
c=now.strftime(\'today is the %j day of this year\')
print(c)
d=now.strftime(\'this week is the %W week of this year\')
print(d)
e=now.strftime(\'today is the %d day of this month\')
print(e)

第四个那个我输入中文会报错。embedded null byte。不知如何解决。