1
.將字符串的時間轉換爲時間戳
方法:
a =
"2013-10-10 23:40:00"
將其轉換爲時間數組
importtime
timeArray = time.strptime(a,
"%Y-%m-%d %H:%M:%S"
)
轉換爲時間戳:
timeStamp =
int
(time.mktime(timeArray))
timeStamp ==
1381419600
2
.字符串格式更改
如a =
"2013-10-10 23:40:00"
,想改成 a =
"2013/10/10 23:40:00"
方法:先轉換爲時間數組,而後轉換爲其餘格式
timeArray = time.strptime(a,
"%Y-%m-%d %H:%M:%S"
)
otherStyleTime = time.strftime(
"%Y/%m/%d %H:%M:%S"
, timeArray)
3
.時間戳轉換爲指定格式日期:
方法一:
利用localtime()轉換爲時間數組,而後格式化爲須要的格式,如
timeStamp =
1381419600
timeArray = time.localtime(timeStamp)
otherStyleTime = time.strftime(
"%Y-%m-%d %H:%M:%S"
, timeArray)
otherStyletime ==
"2013-10-10 23:40:00"
方法二:
importdatetime
timeStamp =
1381419600
dateArray = datetime.datetime.utcfromtimestamp(timeStamp)
otherStyleTime = dateArray.strftime(
"%Y-%m-%d %H:%M:%S"
)
otherStyletime ==
"2013-10-10 23:40:00"
4
.獲取當前時間並轉換爲指定日期格式
方法一:
importtime
得到當前時間時間戳
now =
int
(time.time()) ->這是時間戳
轉換爲其餘日期格式,如:
"%Y-%m-%d %H:%M:%S"
timeArray = time.localtime(timeStamp)
otherStyleTime = time.strftime(
"%Y-%m-%d %H:%M:%S"
, timeArray)
方法二:
importdatetime
得到當前時間
now = datetime.datetime.now() ->這是時間數組格式
轉換爲指定的格式:
otherStyleTime = now.strftime(
"%Y-%m-%d %H:%M:%S"
)
5
.得到三天前的時間
方法:
importtime
importdatetime
先得到時間數組格式的日期
threeDayAgo = (datetime.datetime.now() - datetime.timedelta(days =
3
))
轉換爲時間戳:
timeStamp =
int
(time.mktime(threeDayAgo.timetuple()))
轉換爲其餘字符串格式:
otherStyleTime = threeDayAgo.strftime(
"%Y-%m-%d %H:%M:%S"
)
注:timedelta()的參數有:days,hours,seconds,microseconds
6
.給定時間戳,計算該時間的幾天前時間:
timeStamp =
1381419600
先轉換爲datetime
importdatetime
importtime
dateArray = datetime.datetime.utcfromtimestamp(timeStamp)
threeDayAgo = dateArray - datetime.timedelta(days =
3
)
參考
5
,能夠轉換爲其餘的任意格式了
原文地址:http://www.2cto.com/kf/201406/311477.html