从入口处摸墙求解，利用循环通过对墙壁的触摸来寻找出口。规定迷宫为一个二维数组，迷宫入口在二维数组第一行，出口在二维数组最后一列。-From the entrance to touch the wall solving, use of loop through the walls of touch to find export. The provisions of the maze for a two-dimensional array, the maze entrance in the two-