python中的计算时间差方法 seconds和total_seeconds()

import datetime

t1 = datetime.datetime.strptime(“2016-08-24 10:30:00”, “%Y-%m-%d %H:%M:%S”)
t2 = datetime.datetime.strptime(“2016-08-24 12:30:00”, “%Y-%m-%d %H:%M:%S”)

interval_time = (t2 - t1).seconds # 输入的结果：7200
total_interval_time = (t2 - t1).total_seconds() # 输出结果也是: 7200

换一个方式

t1 = datetime.datetime.strptime(“2016-08-24 10:30:00”, “%Y-%m-%d %H:%M:%S”)
t2 = datetime.datetime.strptime(“2016-08-27 12:30:00”, “%Y-%m-%d %H:%M:%S”)
interval_time = (t2 - t1).seconds # 输入的结果：7200
total_interval_time = (t2 - t1).total_seconds() # 输出结果也是: 266400