本程序基于C++利用邻接链表实现了图的基本数据结构，有向图和无向图均适用，包含了图的存储，图的插入，图的删除等基本操作,可供数据结构学习之用。-This program realizes the class of graph using adjacent list. The fundamental function includes the storage of graph, inserting and removing edges from the graph, etc.