运用矩阵来表示迷宫。能根据用户指定的维数自动生成迷宫，并打印迷宫中各个位置的状态。在A 的基础上实现迷宫的自动路径搜索，判断是否存在从起点到终点的通路。(The maze is represented by a matrix. The maze can be generated automatically according to the dimension specified by users, and the status of each location in maze can be printed. On the basis of A, we can achieve automatic path search of maze and determine whether there is a path from start to finish.)