/** * Definition for singly-linked list. * function ListNode(val, next) { * this.val = (val===undefined ? 0 : val) * this.next = (next===undefined ? null : next) * } */ /** * @param {ListNode} list1 * @param {ListNode} list2 * @return {ListNode} */ const mergeTwoLists = (list1, list2) => { if(!list1){ return list2 }else if(!list2){ return list1 }else if(list1.val < list2.val){ list1.next = mergeTwoLists(list1.next, list2) return list1 }else{ list2.next = mergeTwoLists(list2.next, list1) return list2 } };
标签:return,val,合并,list1,next,链表,有序,ListNode,list2 From: https://www.cnblogs.com/zhenjianyu/p/17081252.html