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 sc = new Scanner(System.in);
        char a = sc.next().charAt(0);
        for (int i = 1; i <= 1; i++){
            System.out.print("  "+ a);
            }
        System.out.println();
        for (int i = 1; i <= 1; i++){
            System.out.print(" "+a);
            System.out.print(a);
            System.out.print(a);
        }
        System.out.println();
        for (int i = 1; i <= 5; i++){
            System.out.print(a);
        }
        System.out.println();
        for (int i = 1; i <= 1; i++){
            System.out.print(" "+a);
            System.out.print(a);
            System.out.print(a);

        }
        System.out.println();
        for (int i = 1; i <= 1; i++){
            System.out.print("  "+a);

        }

    }
}