题解 | #反转链表#

/function ListNode(x){ this.val = x; this.next = null; }/ function ReverseList(pHead) { // write code here

if(pHead==null||pHead.next==null){
    return pHead
}

let pre=null,cur=pHead
while(cur){
    let temp=cur.next
    cur.next=pre
    pre=cur
    cur=temp
}
return pre

} module.exports = { ReverseList : ReverseList }; https://www.bilibili.com/video/BV1KZ4y157Up