泛型和链表
泛型
http://baike.baidu.com/link?url=tOKzDK_FGcOBfF3Durii5bHNjCGEtqi0j-YoUF1BhhboCvNQiWWiFr3eA-x5xgrosNtosdXHJYlXXfMyMzCM3_
链表
http://baike.baidu.com/link?url=uGQqIuhYhpfBSSEkOacqFbiEVtMTTzuFf4eL5s6j4sGNZwqryu74VfAomHL64z54_yiOwtSQs7rwMbMM1BUSWa