题解 | #牛牛的字符菱形#

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);
        String s = in.nextLine();
         int i = 0;
         int j = 0;
         for(int line = 0; line < 5; line++){
          i = Math.abs( 2 - line) ;
          j = 5 - i;
          for(int k = 0; k < i; k++){
            System.out.print(" ");
          }
          for(; i < j; i++){
            System.out.print(s);
          }
          for(;j < 5; j++){
            System.out.print(" ");
          }
            System.out.println();

        }

       


    }
}