第二个问题怎么搞？？？？？

Java代码实现，仅供参考

public static void func() {
        int sum = 0;
        for (int i = 1; i <= 8; i *= 2) {
            int res = 1;
            for (int j = 1; j <= i; j++) {
                res *= j;
                System.out.print(j + " ");
            }
            System.out.println();
            sum += res;
        }
        System.out.println("输出结果:" + sum);
    }