1、使用递归的回溯特性解决
/*function ListNode(x){ this.val = x; this.next = null; }*/ const recursion = (node, res) => { if (node) { recursion(node.next, res); res.push(node.val); } } function printListFromTailToHead(head) { const res = []; recursion(head, res); return res; } module.exports = { printListFromTailToHead : printListFromTailToHead };2、使用unshift