import java.util.Scanner;
public class Example{
public static void main(String args[]){
char ch=65;
Scanner input=new Scanner(System.in);
System.out.println("请输入你要打印的层数:");
int n=input.nextInt();
for(int i=0;i<n;i++){
for(int j=0;j<i+1;j++)
System.out.print((char)(ch+i));
System.out.print("\n");
}
}
}
温馨提示:答案为网友推荐,仅供参考