import timeimport datetimeprint(time.clock()) #返回处理器时间,3.3开始已废弃print(time.process_time()) #返回处理器时间,3.3开始已废弃print(time.time()) #返回当前系统时间戳print(time.ctime()) #输出Tue Jan 26 18:23:48 2016 ,当前系统时间print(time.ctime(time.time()-86640)) #将时间戳转为字符串格式print(time.gmtime(time.time()-86640)) #将时间戳转换成struct_time格式print(time.localtime(time.time()-86640)) #将时间戳转换成struct_time格式,但返回 的本地时间print(time.mktime(time.localtime())) #与time.localtime()功能相反,将struct_time格式转回成时间戳格式#time.sleep(4) #sleepprint(time.strftime("%Y-%m-%d %H:%M:%S",time.gmtime()) ) #将struct_time格式转成指定的字符串格式print(time.strptime("2016-01-28","%Y-%m-%d") ) #将字符串格式转换成struct_time格式#datetime moduleprint(datetime.date.today()) #输出格式 2016-01-26print(datetime.date.fromtimestamp(time.time()-864400) ) #2016-01-16 将时间戳转成日期格式current_time = datetime.datetime.now() #print(current_time) #输出2016-01-26 19:04:30.335935print(current_time.timetuple()) #返回struct_time格式#datetime.replace([year[, month[, day[, hour[, minute[, second[, microsecond[, tzinfo]]]]]]]])print(current_time.replace(2014,9,12)) #输出2014-09-12 19:06:24.074900,返回当前时间,但指定的值将被替换str_to_date = datetime.datetime.strptime("21/11/06 16:30", "%d/%m/%y %H:%M") #将字符串转换成日期格式new_date = datetime.datetime.now() + datetime.timedelta(days=10) #比现在加10天new_date = datetime.datetime.now() + datetime.timedelta(days=-10) #比现在减10天new_date = datetime.datetime.now() + datetime.timedelta(hours=-10) #比现在减10小时new_date = datetime.datetime.now() + datetime.timedelta(seconds=120) #比现在+120sprint(new_date)