Python Learning notes (18)

I. INTRODUCTION of DATETIME

DateTime is the standard library for Python to process dates and times

Second, import datetime date time processing Standard library

# datetime is a datetime module, which includes a DateTime class with the same name
From datetime import datetime

Third, get the current date and time information

# Get current datetime information
now = DateTime.Now ()

Iv. specified date and time

DT = DateTime (2015,3,4,12,12,23)

V. Convert date time to Unix time suffix

# convert datetime objects to UNIX time prefixes
Dt.timestamp ()

Vi. converting a time suffix to a date time

# Convert a time suffix to a date time
t = 1565455645
DT = Datetime.fromtimestamp (t)

Seven, string conversion to DateTime

# Convert String to Datetiem
# One of the rear is the date-time matching pattern: see Https://docs.python.org/3/library/datetime.html#strftime-strptime-behavior for details
# Note that there is no time zone information after the conversion
Cday = Datetime.strptime ("2015-6-1 18:56:52", "%y-%m-%d%h:%m:%s")

Eight, date time converted to string

now = DateTime.Now ()
str = now.strftime ("%a,%b,%d%h:%m")

ix. addition and subtraction of datetime

# Add and subtract to date time need to import Timedalta this class
From datetime import Datetime,timedalta
now = Datetime.datetime ()
Now + Timedalta (hours=10) # on the basis of the original time, after another 10 hours between
now = Timedalta (day=2,hours=10) #时间过后两天, time after 10 hours after the hour

Ten, get local time

Import time
# Get local time
LocalTime = Time.localtime (Time.time ())
Print ("local time:", localtime)

Struct_time Time Tuple:
Tm_year
Tm_mon
Tm_mday
Tm_hour
Tm_min
Tm_sec
Tm_wday
Tm_yday
Tm_isdst

Xi. get a calendar of a month

Import Calendar

Cal = Calendar.month (year, month)
Print (CAL)

　　

　　

Python Learning notes (18)