不太理解为什么这么做，一遍遍历老链表的同时创建新链表不行吗？就像这样的吧： public RandomListNode Clone(RandomListNode pHead) { if(pHead == null) return null; RandomListNode head = null; RandomListNode result = null; while(pHead != null){ if(head == null) head = new RandomListNode(pHead.label); else{ head.next = new RandomListNode(pHead.label); head = head.next; } if(result == null) result = head; if(pHead.random != null) head.random = new RandomListNode(pHead.random.label); pHead = pHead.next; } return result; }