大佬们可以指点一下我的第二题吗，我太菜了 public class Main { public static void main(String[] args) { Scanner in = new Scanner(System.in); int n = in.nextInt();//hang int m = in.nextInt();//lie List<List<Integer>> list = new ArrayList<>(); while (in.hasNextInt()) { // 注意 while 处理多个 case List<Integer> temp = new ArrayList<>(); for (int j = 0; j < m; j++) { temp.add(in.nextInt()); } list.add(temp); } int res = 0; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { if (j == m - 1 && list.get(i).get(j) == 0){ res++; break; } if (list.get(i).get(j) == 0){ res++; j++; } } } // System.out.println(list.size()); // System.out.println(list.get(0).size()); System.out.println(res); } }