P182楊輝三角答案

public class TwoDimensionArray003 {

??public static void main(String[] args) {

????//開(kāi)辟內(nèi)存空間

????int[][] arr=new int[10][];

????for (int i = 0; i <arr.length; i++) {

??????arr[i]=new int[i+1];

??????for (int j = 0; j <arr[i].length; j++) {

????????if (j == 0||j==arr[i].length-1) {

??????????arr[i][j]=1;

???????????

????????}else{

??????????arr[i][j]=arr[i-1][j]+arr[i-1][j-1];

????????}

??????}

????}

????for (int i = 0; i < arr.length ; i++) {

??????for (int j = 0; j <arr[i].length ; j++) {

????????System.out.print(arr[i][j]+"\t");

??????}

??????System.out.println();

????}

??}

}