双向链表的编写方法 　　循环链表是与单链表一样，是一种链式的存储结构，所不同的是，循环链表的最后一个结点的指针是指向该循环链表的第一个结点或者表头结点，从而构成一个环形的链。-Doubly linked circular list is a compilation of the single list, is a chain of storage structure, the difference is the last circular list node pointer is point

大数四则运算，双链表方式实现大数的加减乘除四则运算-Large numbers of four operations, doubly linked list to large numbers addition and subtraction, multiplication and division four operations

通讯信息管理 双向链表制作的通讯录源程序-Contacts the source of the doubly linked list made in communications and information management

双向链表的实现，通过类实现，同时由链表的删除创建等。-Doubly linked list implementation, realized through the class, while the list of deleted to create the like.