在Java中利用循环语句实现杨辉三角

    public static void main(String[] args) {

        Scanner in = new Scanner(System.in);
        System.out.print("请输入杨辉三角的行数：");
        int n = in.nextInt();

        for (int i = 1; i < n + 1; i++) {
            for (int k = 0; k < n - i; k++) {
                System.out.print(" ");
            }
            for (int j = 0; j < i; j++) {
                System.out.print("* ");
            }
            System.out.println("");
        }
    }