在python中减去两次

Question

我的代码有问题。我试图减去两次，但它给了我一个错误：

TypeError: unsupported operand type(s) for -: 'time.struct_time' and 'time.struct_time'

错误是跳到这一行：

diff = (end_dt - start_dt)

当我尝试这个时：

start = "09:35:23"
end = "10:23:00"
start_dt = time.strptime(start, '%H:%M:%S')
end_dt = time.strptime(end, '%H:%M:%S')
diff = (end_dt - start_dt)

你能帮我解决一下如何解决我得到的错误吗？

Answer 1

您需要使用datetime模块：

import datetime

start = "09:35:23"
end = "10:23:00"
start_dt = datetime.datetime.strptime(start, '%H:%M:%S')
end_dt = datetime.datetime.strptime(end, '%H:%M:%S')
diff = (end_dt - start_dt)
print(diff)

<强>输出

datetime.timedelta(0, 2857)

这会生成两个datetime个对象，start_dt和end_dt。当您从另一个中减去一个时，它会返回timedelta。