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

@param val int整型

@return ListNode类

class Solution: def deleteNode(self , head: ListNode, val: int) -> ListNode: # write code here if not head: return head else: p = head while p: if head.val == val: head = head.next return head elif p.val == val: pre.next = p.next p.next = None p = pre.next return head else: pre = p p = p.next