方法:list[::1]
例子:[1,2,3,4]翻转后为[4,3,2,1]
题目:
输入一个链表,从尾到头打印链表每个节点的值。
# -*- coding:utf-8 -*-
# class ListNode:
# def __init__(self, x):
# self.val = x
# self.next = None
class Solution:
# 返回从尾部到头部的列表值序列,例如[1,2,3]
def printListFromTailToHead(self, listNode):
# write code here
L = []
if listNode is None:
return []
elif listNode.next is None:
return listNode.val
else:
while listNode.next is not None:
L.append(listNode.val)
listNode = listNode.next
L.append(listNode.val)
return L[::-1]