Merge(SinglyList 《合并》)

  public SinglyList<T> merge(SinglyList<T > list){        Node<T> p = head.next;        Node<T> q = list.head.next;        Node<T> succ;        Node<T> succ2;        while(p!=null&&q!=null){            if (p.data.compareTo(q.data)>0){//               succ2 = q.next;                q.next = p;                head.next = q;//                p = q;//                q = succ2;             //  head.next = new Node<T>(q.data,head.next);             head = head.next;            }else if(p.data.compareTo(q.data)<0){                 succ = q.next;                 q.next = p.next;                 p.next = q;                 p = q;                 q = succ;               //  p.next = new Node<T>(q.data,p.next);                 p = p.next;            }else {                p = p.next;                q = q.next;            }        }        return this;    }