本文实例讲述了python 3.3实现计算两个日期间隔秒数/天数的方法。分享给大家供大家参考，具体如下：
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>>> import datetime
>>> d1 = datetime.datetime.now()
>>> d2 = datetime.datetime.now()
>>> interval = d2 - d1
>>> interval
datetime.timedelta(0, 14, 670206)
>>> sec = interval.days*24*3600 + interval.seconds
>>> sec
14
>>> total_sec = interval.total_seconds()
>>> total_sec
14.670206
>>>
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运行结果截图：
另外一种，指定日期。
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>>> d1 = datetime.datetime(2016,8,10,10,20,30)
>>> d2 = datetime.datetime(2016,8,10,10,30,30)
>>> interval = d2 - d1
>>> interval
datetime.timedelta(0, 600)
>>> sec = interval.days*24*3600 + interval.seconds
>>> sec
600
>>>
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运行结果截图：
间隔天数
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>>> import time
>>> start_date = '2017-06-01'
>>> end_date = '2017-06-05'
>>> start_sec = time.mktime(time.strptime(start_date,'%y-%m-%d'))
>>> end_sec = time.mktime(time.strptime(end_date,'%y-%m-%d'))
>>> work_days = int((end_sec - start_sec)/(24*60*60))
>>> work_days
4
>>>
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运行结果截图：
希望本文所述对大家python程序设计有所帮助。
原文链接：https://blog.csdn.net/uvyoaa/article/details/52170212