from?https://blog.csdn.net/mighty13/article/details/78147357

Python處理時(shí)間和時(shí)間戳的內(nèi)置模塊就有time，和datetime兩個(gè)，本文先說(shuō)time模塊。

關(guān)于時(shí)間戳的幾個(gè)概念
時(shí)間戳，根據(jù)1970年1月1日00:00:00開(kāi)始按秒計(jì)算的偏移量。
時(shí)間元組（struct_time），包含9個(gè)元素。

time.struct_time(tm_year=2017, tm_mon=10, tm_mday=1, tm_hour=14, tm_min=21, tm_sec=57, tm_wday=6, tm_yday=274, tm_isdst=0)
時(shí)間格式字符串，字符串形式的時(shí)間。
time模塊與時(shí)間戳和時(shí)間相關(guān)的重要函數(shù)
time.time() 生成當(dāng)前的時(shí)間戳，格式為10位整數(shù)的浮點(diǎn)數(shù)。
time.strftime()根據(jù)時(shí)間元組生成時(shí)間格式化字符串。
time.strptime()根據(jù)時(shí)間格式化字符串生成時(shí)間元組。time.strptime()與time.strftime()為互操作。
time.localtime()根據(jù)時(shí)間戳生成當(dāng)前時(shí)區(qū)的時(shí)間元組。
time.mktime()根據(jù)時(shí)間元組生成時(shí)間戳。
示例
關(guān)于時(shí)間戳和格式化字符串的簡(jiǎn)單示例如下

import time

#生成當(dāng)前時(shí)間的時(shí)間戳，只有一個(gè)參數(shù)即時(shí)間戳的位數(shù)，默認(rèn)為10位，輸入位數(shù)即生成相應(yīng)位數(shù)的時(shí)間戳，比如可以生成常用的13位時(shí)間戳
def now_to_timestamp(digits = 10):
time_stamp = time.time()
digits = 10 ** (digits -10)
time_stamp = int(round(time_stamp*digits))
return time_stamp

#將時(shí)間戳規(guī)范為10位時(shí)間戳
def timestamp_to_timestamp10(time_stamp):
time_stamp = int (time_stamp* (10 ** (10-len(str(time_stamp)))))
return time_stamp

#將當(dāng)前時(shí)間轉(zhuǎn)換為時(shí)間字符串，默認(rèn)為2017-10-01 13:37:04格式
def now_to_date(format_string="%Y-%m-%d %H:%M:%S"):
time_stamp = int(time.time())
time_array = time.localtime(time_stamp)
str_date = time.strftime(format_string, time_array)
return str_date

#將10位時(shí)間戳轉(zhuǎn)換為時(shí)間字符串，默認(rèn)為2017-10-01 13:37:04格式
def timestamp_to_date(time_stamp, format_string="%Y-%m-%d %H:%M:%S"):
time_array = time.localtime(time_stamp)
str_date = time.strftime(format_string, time_array)
return str_date

#將時(shí)間字符串轉(zhuǎn)換為10位時(shí)間戳，時(shí)間字符串默認(rèn)為2017-10-01 13:37:04格式
def date_to_timestamp(date, format_string="%Y-%m-%d %H:%M:%S"):
time_array = time.strptime(date, format_string)
time_stamp = int(time.mktime(time_array))
return time_stamp

#不同時(shí)間格式字符串的轉(zhuǎn)換
def date_style_transfomation(date, format_string1="%Y-%m-%d %H:%M:%S",format_string2="%Y-%m-%d %H-%M-%S"):
time_array = time.strptime(date, format_string1)
str_date = time.strftime(format_string2, time_array)
return str_date

實(shí)驗(yàn)

print(now_to_date())
print(timestamp_to_date(1506816572))
print(date_to_timestamp('2017-10-01 08:09:32'))
print(timestamp_to_timestamp10(1506816572546))
print(date_style_transfomation('2017-10-01 08:09:32'))

結(jié)果為

1506836224000
2017-10-01 13:37:04
2017-10-01 08:09:32
1506816572
1506816572
2017-10-01 08-09-32
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原文鏈接：https://blog.csdn.net/mighty13/article/details/78147357