如何在不进入非终止while循环的情况下显示链表的元素？

class ListNode:
    def __init__(self, val=0, next=None):
        self.val = val
        self.next = next

def display_linked_list(head):
    current = head
    while current:
        print(current.val)
        current = current.next

# 创建一个链表：1 -> 2 -> 3 -> 4 -> 5
head = ListNode(1)
node2 = ListNode(2)
node3 = ListNode(3)
node4 = ListNode(4)
node5 = ListNode(5)
head.next = node2
node2.next = node3
node3.next = node4
node4.next = node5

# 显示链表元素
display_linked_list(head)