主要实现图形遍历功能，可选择深度或广度图形遍历。-Graphical traversal functions primarily to achieve, choose the depth or breadth of graphic traverse.

图的存储方式，数据结构的绝佳范例，方便深入理解动态指针，结构简单，方便移植-Figure of storage, an excellent example of the data structure to facilitate in-depth understanding of the dynamic pointers, simple structure, easy to transplant

主要实现图形遍历功能，可选择深度或广度图形遍历。-Graphical traversal functions primarily to achieve, choose the depth or breadth of graphic traverse.