| #-*-Encoding:utf8-*-
'''
@author: Crazyant
@version: 2013-10-12
'''
Import datetime, Time #定义的日期的格式, you can change your own, such as "$Y year $m month $d Day"
Format_date = "%y-%m-%d"
Format_datetime = "%y-%m-%d%h:%m:%s" Def getcurrentdate ():
'''
Get current date: 2013-09-10 such a date string
'''
Return Time.strftime (Format_date, Time.localtime (Time.time ())) Def getcurrentdatetime ():
'''
Get current time: 2013-09-10 11:22:11 time of the year month date time string
'''
Return Time.strftime (Format_datetime, Time.localtime (Time.time ())) Def getcurrenthour ():
'''
Gets the number of hours for the current time, such as 16 if the current is 16 o'clock in the afternoon
'''
Currentdatetime=getcurrentdatetime ()
return currentdatetime[-8:-6] Def getdateelements (sdate):
'
Enter a date string that returns a struct group containing the various components of the date
Input: 2013-09-10 or 2013-09-10 22:11:22
Back: Time.struct_time (tm_year=2013, tm_mon=4, Tm_mday=1, tm_hour=21, tm_min=22, tm_sec=33, tm_wday=0, tm_yday=91, tm_ Isdst=-1)
"
Dformat =" "
if Judgedateformat ( sdate) = = 0:
return None
elif Judgedateformat ( sdate) = = 1:
dformat = format_date
elif Judgedateformat (sdate) = = 2:
dformat = format_datetime
sdate = Time.strptime (sdate, Dformat)
return sdate Def getdatetonumber (date1):
'
remove the minus colon from the date string:
Input: 2013-04-05, returning 20130405
input: 2013-04-05 22:11:23 returns 20130405221123
"
return Date1.replace ("-"," "). Replace (": "," "). Replace (" "," ") def judgedateformat (DATESTR):
'''
Determine the format of the date, if the "%y-%m-%d" format is returned 1, if it is "%y-%m-%d%h:%m:%s" then return 2, otherwise return 0
Parameter datestr: Date string
'''
Try
Datetime.datetime.strptime (Datestr, Format_date)
Return 1
Except
Pass Try
Datetime.datetime.strptime (Datestr, Format_datetime)
Return 2
Except
Pass return 0 def minustwodate (Date1, Date2):
'''
Subtract two dates to get the Datetime.timedelta object after subtraction
The result can be accessed directly by its properties days, seconds, microseconds
'''
If Judgedateformat (date1) = = 0 or Judgedateformat (date2) = = 0:
Return None
d1elements = getdateelements (date1)
d2elements = getdateelements (date2)
If not d1elements or not d2elements:
Return None
D1 = Datetime.datetime (D1elements.tm_year, D1elements.tm_mon, D1elements.tm_mday, D1elements.tm_hour, d1Elements.tm_ Min, d1elements.tm_sec)
D2 = Datetime.datetime (D2elements.tm_year, D2elements.tm_mon, D2elements.tm_mday, D2elements.tm_hour, d2Elements.tm_ Min, d2elements.tm_sec)
Return D1-D2 def dateaddindays (Date1, Addcount):
'''
Date plus or minus a number to return a new date
Parameter date1: the date to be calculated
Parameter Addcount: The number to be added or subtracted, can be 1, 2, 3,-1,-2,-3, negative numbers to subtract
'''
Try
Addtime=datetime.timedelta (Days=int (Addcount))
D1elements=getdateelements (Date1)
D1 = Datetime.datetime (D1elements.tm_year, D1elements.tm_mon, D1elements.tm_mday)
Datenew=d1+addtime
Return Datenew.strftime (format_date)
Except Exception as E:
Print E
Return None Def is_leap_year (pyear):
'
determine if the year entered is a leap years
' '
try:
Datetime.datetime (pyear, 2)
return true
except valueerror:
return false def datediffindays (Date1, Date2):
'''
Gets the number of days between two dates, or negative numbers if date1 is greater than date2 and returns a positive value
'''
Minusobj = Minustwodate (date1, Date2)
Try
Return minusobj.days
Except
Return None def datediffinseconds (Date1, Date2):
'''
Gets the number of seconds that differ by two dates
'''
Minusobj = Minustwodate (date1, Date2)
Try
Return minusobj.days * 3600 + minusobj.seconds
Except
Return None def getweekofdate (pdate):
'''
Gets the week for the date, enters a date, returns a weekly number, 0~6, 0 of which is Sunday
'''
Pdateelements=getdateelements (pdate) Weekday=int (Pdateelements.tm_wday) +1
If weekday==7:
Weekday=0
Return weekday If __name__== "__main__":
'''
Some test code
'''
Print Judgedateformat ("2013-04-01")
Print Judgedateformat ("2013-04-01 21:22:33")
Print Judgedateformat ("2013-04-31 21:22:33")
Print Judgedateformat ("2013-xx")
Print "--"
Print Datetime.datetime.strptime ("2013-04-01", "%y-%m-%d")
print ' Elements '
Print getdateelements ("2013-04-01 21:22:33")
print ' minus '
Print minustwodate ("2013-03-05", "2012-03-07"). Days
Print Datediffinseconds ("2013-03-07 12:22:00", "2013-03-07 10:22:00")
Print type (getcurrentdate ())
Print GetCurrentDateTime ()
Print Datediffinseconds (GetCurrentDateTime (), "2013-06-17 14:00:00")
Print Getcurrenthour ()
Print Dateaddindays ("2013-04-05",-5)
Print Getdatetonumber ("2013-04-05")
Print Getdatetonumber ("2013-04-05 22:11:33") Print getweekofdate ("2013-10-01") |
