题解 | #判断一个链表是否为回文结构#

# class ListNode:
#     def __init__(self, x):
#         self.val = x
#         self.next = None
#
# 代码中的类名、方法名、参数名已经指定，请勿修改，直接返回方法规定的值即可
#
# 
# @param head ListNode类 the head
# @return bool布尔型
#
class Solution:
    def isPail(self , head: ListNode) -> bool:
        # write code here
        this = head
        ll1 = []
        while this:
            ll1.append(this.val)
            this = this.next
        ll2 = ll1.copy()
        ll2.reverse()

        if ll1==ll2:
            return True
        else:
            return False