关于时间的函数以及用法

• 获取当天日期

  from datetime import date
  today = date.today()
  print(today) # 2022-11-10 输出当天日期  <class 'datetime.date'>
  print("当前年:", today.year)
  print("当前月:", today.month)
  print("当前日:", today.day)
  

• 获取当前时间

  import datetime
  now = datetime.datetime.now()
  print(now) # 2022-11-10 13:56:52.137891 输出当前时间<class'datetime.datetime'>
  

• 将数字转为时间对象

  import datetime
  t = datetime.date(2022,11,10)
  pritnt(t)  # 2022-11-10 <class 'datetime.date'>
  
  from datetime import time
  t = time(11,10,56)
  print(t)  # 11:10:56 <class 'datetime.time'>
  

• 获取当前的时间戳

  import datetime
  import time
  t = datetime.datetime.now().timestamp()
  print(t) # 1668065049.539514  <class 'float'>
  t1 = time.time()
  print(t1) # 1668065049.539514  <class 'float'>
  tt = date.fromtimestamp(t)
  print(tt) #2022-11-10 <class 'datetime.date'>
  

• 格式化日期格式

  from datetime import datetime
  now = datetime.now()
  t = now.strftime("%H:%M:%S")
  print(t) # 17:14:24 <class 'str'> 
  s = now.strftime("%Y%m%d,%H:%M:%S")
  print(s) # 2022-11-10,17:22:09