python - 在 python 中将列表分解为重叠的元组列表

Question

假设我有:

path1 = [0,3,1]
path2 = [0, 3, 2, 1]

我想要

splitsOfPath1 = [(0,3), (3,1)]
splitsOfPath2 = [(0,3), (3, 2), (2, 1)]

如何实现？我阅读路径的方式是从 0 到 1，你需要访问 3。但是要分解它，从 0 到 1。你需要从 0 到 3 (0,3)，然后从 3 到1 (3, 1)

Answer 1

您可以使用 zip和 Explain Python's slice notation :

>>> path1 = [0, 3, 1]
>>> splitsOfPath1 = zip(path1, path1[1::])
>>> splitsOfPath1
[(0, 3), (3, 1)]
>>>
>>> path2 = [0, 3, 2, 1]
>>> splitsOfPath2 = zip(path2, path2[1::])
>>> splitsOfPath2
[(0, 3), (3, 2), (2, 1)]
>>>