在java中将数字打印为三角形

import java.util.Scanner;

public class PrintTriangle {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        System.out.print("请输入一个正整数：");
        int n = scanner.nextInt();

        for (int i = 1; i <= n; i++) {
            // 打印空格，使数字右对齐
            for (int j = 1; j <= n - i; j++) {
                System.out.print(" ");
            }

            // 打印数字
            for (int k = 1; k <= i; k++) {
                System.out.print(k + " ");
            }

            System.out.println(); // 换行
        }
    }
}

    1
   1 2
  1 2 3
 1 2 3 4
1 2 3 4 5