happyruth: 输入net start sshd 后显示系统错误，拒绝访问怎么办啊？

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weizhongfeng: 兄弟，都23年了，早都不一样了

你即刻出发: [code=java] static Map directions = new HashMap(); public static void main(String[] args) { // n * m 个方格 机器人初始位置为[0][0]，k个指令(W，A，S，D) directions.put('W',new int[]{-1,0}); directions.put('A',new int[]{0,-1}); directions.put('S',new int[]{1,0}); directions.put('D',new int[]{0,1}); Scanner sc = new Scanner(System.in); int n = sc.nextInt();int m = sc.nextInt();int k = sc.nextInt(); sc.nextLine(); boolean[][] visited = new boolean[n][m]; visited[0][0] = true; String command = sc.next(); int x = 0,y = 0,result = 1; for(int i=0;i