LearnPython/python_datetime.py

55 lines
2.7 KiB
Python
Raw Blame History

This file contains ambiguous Unicode characters!

This file contains ambiguous Unicode characters that may be confused with others in your current locale. If your use case is intentional and legitimate, you can safely ignore this warning. Use the Escape button to highlight these characters.

# _*_ coding: utf-8 _*_
import time
import calendar
import datetime
# time模块中的三种时间形式
print("time stamp:", time.time()) # 时间戳
print("local time:", time.localtime()) # struct_time类型的本地时间
print("utc time:", time.gmtime()) # struct_time类型的utc时间
# time模块中三种时间形式之间的转换
time_stamp = time.time() # 时间戳
local_time = time.localtime(time_stamp) # 时间戳转struct_time类型的本地时间
utc_time = time.gmtime(time_stamp) # 时间戳转struct_time类型的utc时间
time_stamp_1 = time.mktime(local_time) # struct_time类型的本地时间转时间戳
time_stamp_2 = calendar.timegm(utc_time) # struct_time类型的utc时间转时间戳
print(time_stamp, time_stamp_1, time_stamp_2)
# time模块中三种时间形式和字符串之间的转换
print(time.ctime(time_stamp)) # 时间戳转字符串(本地时间字符串)
print(time.asctime(local_time)) # struct_time类型的本地时间转字符串
print(time.asctime(utc_time)) # struct_time类型的utc时间转字符串
print(time.strftime("%Y-%m-%d, %H:%M:%S, %w", local_time)) # struct_time类型的本地时间转字符串自定义格式
print(time.strftime("%Y-%m-%d, %H:%M:%S, %w", utc_time)) # struct_time类型的utc时间转字符串自定义格式
struct_time = time.strptime("2016-11-15, 15:32:12, 2", "%Y-%m-%d, %H:%M:%S, %w") # 字符串转struct_time类型
# datetime模块中datetime类的用法
a_datetime_local = datetime.datetime.now() # 获取datetime.datetime类型的本地时间
a_datetime_utc = datetime.datetime.utcnow() # 获取datetime.datetime类型的utc时间
print(a_datetime_local.strftime("%Y-%m-%d, %H:%M:%S, %w")) # datetime.datetime类型转字符串
print(a_datetime_utc.strftime("%Y-%m-%d, %H:%M:%S, %w")) # datetime.datetime类型转字符串
a_datetime = datetime.datetime.strptime("2016-11-15, 15:32:12, 2", "%Y-%m-%d, %H:%M:%S, %w") # 字符串转datetime.datetime格式
# datetime.datetime类和时间戳、struct_time类型之间的转换
time_stamp = a_datetime_local.timestamp() # datetime类型转时间戳
print(time_stamp)
a_datetime_local = datetime.datetime.fromtimestamp(time.time()) # 时间戳转datetime.datetime类型的本地时间
a_datetime_utc = datetime.datetime.utcfromtimestamp(time.time()) # 时间戳转datetime.datetime类型的utc时间
print(a_datetime_local, a_datetime_utc)
print(a_datetime_local.timetuple()) # datetime类型转struct_time类型
print(a_datetime_utc.utctimetuple()) # datetime类型转struct_time类型