二维数组理解图例

示例 

int[][][] nums = new int[2][2][2];
Random random = new Random();
for (int[][] num : nums) {for (int[] ints : num) {for (int i = 0; i < ints.length; i++) {// 生成100以内的随机数ints[i] = random.nextInt(100);}}
}
for (int[][] num : nums) {for (int[] ints : num) {for (int anInt : ints) {System.out.println(anInt);}}
}