python-get the day before the current time (or one second)

Get the day before the current time (or one second)


If the current time is: 2014-6-11 17:12:45
Day before: 2014-6-10 17:12:45
Previous second: 2014-6-11 17:12:44

 #coding =utf-8  import timeimport Datetimeprint time.ctime () //Print current time  now_time  = Datetime.datetime.now () //returns the current time of the local time zone  print now_timeyesterday  = Now_ Time + datetime . timedelta (days =-1   )  //yesterday's now  print yesterdaynow_old  = Now_time + datetime . timedelta (seconds =-1   )  //now the previous second  print now_old  

Operation Result:
Wed June 11 17:21:07 2014
2014-06-11 17:21:07.750000
2014-06-10 17:21:07.750000
2014-06-11 17:21:06.750000

python-get the day before the current time (or one second)