/**  
     * 回文数字判断
     * 
     * @param num
     * @since 0.0.1
     */
    public void huiwen(String num){
        Integer temp = (num.length())/2 ;
        System.out.println(temp);
        boolean flag = true;
        for (int i = 0; i < num.length(); i++) {
            if (temp > 0) {
                if (i >= temp) {
                    break;
                }
            }
            System.out.println("num.charAt(i) = "+num.charAt(i)+";num.charAt(num.length()-1-i)"+num.charAt(num.length()-1-i));
            if (num.charAt(i) != num.charAt(num.length()-1-i)) {
                flag = false;
                break;
            }
        }
        if (!flag) {
            System.out.println("不是回文数字");
        }else{
            System.out.println("是回文数字");
        }
    }