基于Virtual C++的数据结构中图的应用，能实现从文件输入有向图和无向图易邻接表和邻接矩阵的形式在屏幕输出，同时能实现无向图的深度遍历输出和广度遍历输出；kruskal算法和Prim算法实现最小生成树的创建；Dijkstra算法实现最短路径的计算；以及最小偏心距的计算。-Application of data structure of Virtual in C++ based on graph, can be achieved　the file input directed graphs and undirected graph adjacency list and the adjacency matrix is easy to form on the screen output, at the same time, can realize the undirected graph depth first traversal and breadth traversal output output　Kruskal algorithm and Prim algorithm to achieve the creation of the Oki Nariki　Dijkstra algorithm the shortest path calculation　and the calculation of minimum eccentricity.