可以练习下链表的逆置。
def PrintListReversingly(head): if head == None: return if head: PrintListReversingly(head.next) print head.val def reverse(head): if head == None or head.next == None: return head psuhead = ListNode(-1) while head: nexthead = head.next head.next = psuhead.next psuhead.next = head head = nexthead head = psuhead.next del psuhead return head
【剑指offer】Q5:从尾到头打印链表
时间: 2024-10-14 13:13:41