- 全部代码
public class Num203 {
public ListNode removeElements(ListNode head, int val) {
ListNode dummyHead = new ListNode(-1);
dummyHead.next = head;
ListNode prev = dummyHead;
while (prev.next != null){
if (prev.next.val == val){
//找到待删除节点
prev.next = prev.next.next;
}else {
prev = prev.next;
}
}
return dummyHead.next;
}
}