题解 | #单组_二维字符数组#

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        int a = in.nextInt();
        int a1 = a;
        int b = in.nextInt();
        int b1 = b;
        int len = a * b;
        int len1 = len;
        int bo = b;//out计数
        char[] c = new char[len];
        len1 = len;
        while (a1 > 0) {
            b1 = b; //复位
            int i1 = 0;
            String str = in.next();
            while (b1 > 0) {
                c[len1 - 1] = str.charAt(i1++);
                len1--;
                b1--;
            }
            a1--;
        }
        //正序输出
        len1 = len;
        int i = 0;
        while(len1>0){
            System.out.print(c[i]);
            i++;
            len1--;
            if(i%b==0){
                System.out.println();
            }
        }
    }
}