public class Yanghui {
    public static void main(String[] args) {
        int[][] arr = new int[10][];
        for (int i = 0; i < 10; i++) {
            arr[i] = new int[i + 1];
        }
        //创建不规则二维数组 也可用规则的二维数组
        for (int i = 0; i < 10; i++) {
            arr[i][0] = 1;
            arr[i][i] = 1;
        }
        //最外层赋值为1
        for (int i = 2; i < 10; i++) {
            for (int j = 1; j < i; j++) {
                arr[i][j] = arr[i - 1][j] + arr[i - 1][j - 1];
            }
        }
        //内层计算
        for (int i = 0; i < 10; i++) {
            for (int k = 0; k < 10 - i; k++) {
                System.out.print("  ");
            }
            for (int j = 0; j <= i; j++) {
                System.out.print(arr[i][j] + " ");
                if (arr[i][j] < 10)
                    System.out.print("  ");
                if (arr[i][j] < 100 && arr[i][j] >= 10)
                    System.out.print(" ");

            }
            System.out.println();

        }
        //调整代码间距，使其更加美观
    }
}