转移列表的元素

Question

L=["apple","banana","mango","kiwi"]

如果用户输入水果，让我们说香蕉，输出必须是

["banana","mango","kiwi","apple"]

我应该使用后移原理吗？ 请帮忙。

Answer 1

你可以试试这个：

from collections import deque
d = deque(["apple","banana","mango","kiwi"])
d.rotate(-list(d).index("banana"))
print(list(d))

输出：

['banana', 'mango', 'kiwi', 'apple']