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# _*_ 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