题目:

题解:
Go
func removeElements(head *ListNode, val int) *ListNode {
dummyHead := &ListNode{Next: head}
for tmp := dummyHead; tmp.Next != nil; {
if tmp.Next.Val == val {
tmp.Next = tmp.Next.Next
} else {
tmp = tmp.Next
}
}
return dummyHead.Next
}