循环链表大多数情况下都有向前或向后指针。
Most of the time circular lists have a front and back Pointers.
通过传递正或负的增量就可以在堆栈中向前或向后移动。
By passing positive and negative increments, we will move forward and backward in the stack.
所有的块都可以从任意已知块开始以向前或向后的方向被遍历。
All chunks can be traversed starting from any known chunk in either a forward or backward direction.
应用推荐