aws_apprentice

你在找 deque ?

from collections import deque

d = deque([(1,2),(3,4),(5,6),(7,8),(9,10)])

d.rotate(1)
deque([(9, 10), (1, 2), (3, 4), (5, 6), (7, 8)])

d.rotate(-1)
deque([(1, 2), (3, 4), (5, 6), (7, 8), (9, 10)])