老鼠走迷宫是递回求解的基本题型，我们在二维阵列中使用2表示迷宫墙壁，使用1来表

示老鼠的行走路径，试以程式求出由入口至出口的路径。-Mouse Maze recursive solving fundamental questions, we used two maze walls in the two-dimensional array, using a mouse to indicate the walking path, try to programmatically determine the path from the inlet to the outlet.