datetime处理日期和时间

Posted 2020-10-09 wtaure

from datetime import datetime
#获取当前时间

print(\'获取当前时间\')

print(datetime.now())
#获取当前标准时间

print(\'获取当前标准时间\')
print(
datetime.utcnow())

#用指定日期时间创建datetime
now=datetime(2017,5,23,12,20)
print(now)

from datetime import datetime

print(\'将以下字符串转换成datetime类型：\')
print(datetime.strptime(\'2017/9/30\',\'%Y/%m/%d\'))
print(datetime.strptime(\'2017年9月30日星期六\',\'%Y年%m月%d日星期六\'))
print(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%I时%M分%S秒\'))
print(datetime.strptime(\'9/30/2017\',\'%m/%d/%Y\'))
print(datetime.strptime(\'9/30/2017 8:42:50\',\'%m/%d/%Y %H:%M:%S\'))

from datetime import datetime
print(\'将以下datetime类型转换成字符串：\')
print(
datetime(2017,9,28,10,3,43))
a=datetime(2017,9,28,10,3,43)
print(a.strftime(\'%Y年%m月%d日%A,%H时%M分%S秒\'))
b=datetime(2017,9,30,9,22,17)
print(b.strftime(\'%A,%B %d, %Y\'))
print(b.strftime(\'%m/%d/%Y %I:%M:%S %p\'))
print(b.strftime(\'%B %d,%Y\'))

from datetime import datetime
now=datetime(2017,9,28)
print(now.strftime(\'今天是%Y年%m月%d日\'))
print(now.strftime(\'今天是这周的第%w天\'))
print(now.strftime(\'今天是今年的第%j天\'))
print(now.strftime(\'今周是今年的第%W周\'))
print(now.strftime(\'今天是当月的第%d天\'))