【测开面试题-004】java实现1234按位输出1-2-3-4

package com.course.coke.exam;

import java.util.Scanner;

public class Demo02 {

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.println("请输入正整数：");
        int num = scanner.nextInt();
        rePrint(num);
    }

    static void rePrint(int num){
        if (num > 9){
            rePrint( num / 10);
        }
        System.out.println(num % 10 + " ");
    }
}