单链表之删除链表重复数据

 1 public static void deleteDup(Node head){
 2     Node p = head;
 3     while(p!=null){
 4         Node q = p;
 5         while(q.next != null){
 6             if(p.data == q.next.data){
 7                 q.next = q.next.next;
 8                 //不能加q = q.next;
 9             }else{
10                 q = q.next;
11             }
12         }
13         p = p.next;
14     }
15 }