关于#java#的问题，请各位专家解答！

Question

Answer 1

多自己动动手，题目还是很简单的

    public boolean isSelfDivisor(int num) {
        if (num <= 0) return false;
        int tmp = num;
        while (tmp > 0) {
            int k = tmp % 10;
            if (k == 0 || num % k != 0) return false;
            tmp = tmp / 10;
        }
        return true;
    }