Time module method:
time.time(): Get the timestamp of the current time
time.localtime(): Accept a timestamp , and convert it into a tuple of the current time. If no parameters are given, time.time() will be passed in as a parameter by default
Attribute | Meaning | |
tm_year | 年 | |
tm_mon | 月 | |
tm_mday | 日 | |
tm_hour | hour | |
tm_min | minutes | |
tm_sec | seconds | |
tm_wday | Day of the week | |
tm_yday | Day of the year | |
tm_isdst | Daylight Saving Time |
Sun Jul 28 04:37:38 2013
Format | Meaning | Value range (format) | |
%y | The year minus the century | 00-99 | |
Complete year | |||
Day of the year | 001-366 | ||
%m | Month | January 12th | |
Local simplified month name | Abbreviated English month | ##%B | |
Full English month | Date | ||
Day of the month | 1 month 31st | ##hour | |
The hour of the day (24-hour clock) | 00-23 | %l | |
“01-12” | Minutes | ||
Minutes | 00-59 | Seconds | |
Seconds | 00-59 | Week | |
The number of weeks in the year (from Starting from Sunday) | 00-53 | %W | |
%w | |||
0-6 | Time Zone | ||
China: It should be GMT+8 (China Standard Time) | Please educate yourself | Others | |
Local corresponding date | 日/month/year | %X | |
Hour:Minute:Second | %c | ||
Day/Month/Year Hour:Minute:Second | %% | ||
'%' character | %p | ||
AM or PM |
time.strptime('28/Jul/2013:04:33:29', '%d/%b/%Y:%X') Copy after login 返回结果: 复制代码 代码如下: time.struct_time(tm_year=2013, tm_mon=7, tm_mday=28, tm_hour=4, tm_min=33, tm_sec=29, tm_wday=6, tm_yday=209, tm_isdst=-1) time.clock():返回处理器时钟时间,一般用于性能测试和基准测试等,因为他们反映了程序使用的实际时间,平常用不到这个。 time.sleep():推迟指定的时间运行,单位为秒 import time print time.time() #打印时间戳 print time.localtime()#打印本地时间元组 print time.gmtime()#答应UTC+0时区的时间元组 print time.ctime()#打印asctime格式化时间 print time.mktime(time.localtime())#将时间元组转换为时间戳 print time.asctime()#打印格式化时间 print time.strftime('%d/%b/%Y:%X')#打印指定格式的时间格式 #把时间字符串和它的格式翻译成时间元组 print time.strptime('28/Jul/2013:04:33:29', '%d/%b/%Y:%X') print '%0.5f'%time.clock() #打印处理器时间 for i in range(100000): pass print '%0.5f'%time.clock()#打印处理器时间 Copy after login 来看一下结果: [root@localhost ~]# python time1.py Copy after login 1364028568.55 time.struct_time(tm_year=2013, tm_mon=3, tm_mday=23, tm_hour=4, tm_min=49, tm_sec=28, tm_wday=5, tm_yday=82, tm_isdst=1) time.struct_time(tm_year=2013, tm_mon=3, tm_mday=23, tm_hour=8, tm_min=49, tm_sec=28, tm_wday=5, tm_yday=82, tm_isdst=0) Sat Mar 23 04:49:28 2013 1364028568.0 Sat Mar 23 04:49:28 2013 23/Mar/2013:04:49:28 time.struct_time(tm_year=2013, tm_mon=7, tm_mday=28, tm_hour=4, tm_min=33, tm_sec=29, tm_wday=6, tm_yday=209, tm_isdst=-1) 0.02000 0.03000 Copy after login datetime模块 #coding:utf-8 import datetime print datetime.time() t = datetime.time(1, 3, 5, 25) print t print t.hour #时 print t.minute #分 print t.second #秒 print t.microsecond #毫秒 print datetime.time.max #一天的结束时间 print datetime.time.min #一天的开始时间 Copy after login 执行一下: 00:00:00 01:03:05.000025 23:59:59.999999 00:00:00 Copy after login datetime.date():生成一个日期对象。这个日期要由我们来设置,(这个类只针对日期) #coding:utf-8 import datetime #设置日期 t = datetime.date(2013, 2, 3) #打印设置日期的和元组 print t.timetuple()#日期元组 print t print t.year #年 print t.month #月 print t.day #日 #获取今天的日期 today = datetime.date.today() print today print datetime.datetime.now()#这个打印到毫秒级别 #获取今天日期的元组 t1 = today.timetuple() print t1 #打印成ctime格式(time.ctime()格式) #'%a %b %d %H:%M:%S %Y' print t.ctime() print today.ctime() Copy after login 运行结果 time.struct_time(tm_year=2013, tm_mon=2, tm_mday=3, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=6, tm_yday=34, tm_isdst=-1) 2013-02-03 2013 2 3 2013-07-28 2013-07-28 20:13:25.942000 time.struct_time(tm_year=2013, tm_mon=7, tm_mday=28, tm_hour=0, tm_min=0, tm_sec=0, tm_wday=6, tm_yday=209, tm_isdst=-1) Sun Feb 3 00:00:00 2013 Sun Jul 28 00:00:00 2013 Copy after login datetime.timedelta():这个类用来做时间的算数运算 #coding:utf-8 import datetime #打印:从毫秒到周的表示格式 = 转换成秒 (total_seconds()) for i in [datetime.timedelta(milliseconds=1), #1毫秒 datetime.timedelta(seconds=1), #1秒 datetime.timedelta(minutes=1), #1分钟 datetime.timedelta(hours=1), #1小时 datetime.timedelta(days=1), #1天 datetime.timedelta(weeks=1)]:#11周 #print i + ':' + i.total_seconds() print '%s = %s seconds'%(i,i.total_seconds()) print print '~' * 20 + '我是分割线' + '~' * 20 print '计算时间的加减。。。。。。。。。' a = datetime.datetime.now() print '现在时间是:' print a print '加5小时之后变成:' b = a + datetime.timedelta(hours=5) print b print '加一周之后变成:' c = a + datetime.timedelta(weeks=1) print c print '减去一周后变成:' d = a - datetime.timedelta(weeks=1) print d print '计算2个时间相差多久' print '%s减去%s'%(b, a) print '等于:%s'%(b - a) print '%s减去%s'%(a, d) print '等于:%s'%(a - d) print print '~' * 20 + '我是分割线' + '~' * 20 print '比较2个时间:' print '比较当天和一周前的' print a > d print '如果比较d > a 的话就返回False' print print '~' * 20 + '我是分割线' + '~' * 20 print '上面的列子都是把日期和时间分开的,现在我们来把他们自由结合' print '假设我们想要的时间是:2014-01-05 13:14:25' t = datetime.time(13, 14, 25) d = datetime.date(2014, 01, 05) print datetime.datetime.combine(d, t) Copy after login 打印为: 0:00:00.001000 = 0.001 seconds 0:00:01 = 1.0 seconds 0:01:00 = 60.0 seconds 1:00:00 = 3600.0 seconds 1 day, 0:00:00 = 86400.0 seconds 7 days, 0:00:00 = 604800.0 seconds Copy after login 计算时间的加减。。。。。。。。。 现在时间是: 2013-07-28 21:34:33.531000 加5小时之后变成: 2013-07-29 02:34:33.531000 加一周之后变成: 2013-08-04 21:34:33.531000 减去一周后变成: 2013-07-21 21:34:33.531000 计算2个时间相差多久 2013-07-29 02:34:33.531000减去2013-07-28 21:34:33.531000 等于:5:00:00 2013-07-28 21:34:33.531000减去2013-07-21 21:34:33.531000 等于:7 days, 0:00:00 比较2个时间: 比较当天和一周前的 True 如果比较d > a 的话就返回False 上面的列子都是把日期和时间分开的,现在我们来把他们自由结合 假设我们想要的时间是:2014-01-05 13:14:25 2014-01-05 13:14:25 Copy after login 更多Python中time模块和datetime模块的用法示例分析相关文章请关注PHP中文网!
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