# 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 her newhead=ListNode(-1) newhead.next=head cur=head pre=newhead while cur: if cur.val==val: pre.next=cur.next break pre=cur cur=cur.next return newhead.next