命名切片

zltzlt

>>> rev = slice(None, None, -1)
>>> sec_end = slice(1, None)
>>> list1 = [1, 2, 3, 4, 5, 6, 7, 8]
>>> list1[rev]
[8, 7, 6, 5, 4, 3, 2, 1]
>>> list1[sec_end]
[2, 3, 4, 5, 6, 7, 8]