输出如下图形:
代码
import java.util.Scanner;
public class Main {
public static void main(String[] args) {
Scanner scan=new Scanner(System.in);
int n=scan.nextInt();
for(int i=1;i<=n;i++){
String s1="";
String s2="";
for(int j=1;j<=n-i;j++)
s1+=" ";
for(int j=1;j<=2*i-1;j++) s2+=(char)('A'+i-1);
System.out.println(s1+s2);
}
}
}