迷宫小程序：以一个m×n的长方阵表示迷宫，0和1分别表示迷宫中的通路和障碍，前进的方向有4个，分别是上、下、左、右。设计一个程序，对任意设定的迷宫，求出一条从入口到出口的通路，或得出没有通路的结论-Labyrinth applet: with a m × n rectangular matrix representation of the maze, 0 and 1, respectively, said the maze of access and obstacles, the direction of forward there are four, namely, up, down, left and right. Design a program to find a path　the inlet to the outlet for any set of mazes or conclude that there is no pathway