(1)　　设计一个基类LinkList，分别派生出队列类和栈类。队列类可以进行元素入队列和出队列操作以及取队列长度操作，栈类可以进行入栈和出栈操作，还可以查看栈顶元素的值。-(1) to design a base class LinkList, were derived from Queue and Stack Class categories. Queue element type can be queued into the queue and a queue length of operation and check operation, the stack can be入栈category and a stack operation, can also view the Top-value of the element.