参考代码:
import java.util.Scanner; public class Main2 { /** * @param args */ public static void main(String[] args) { // TODO Auto-generated method stub //PASCAL三角 Scanner scanner=new Scanner(System.in); int n=scanner.nextInt(); int[][]arr=new int[n+1][n+1]; for (int i = 0; i < arr.length; i++) { for (int j = 0; j <=i; j++) { if (j==0||j==i) { arr[i][j]=1; }else { arr[i][j]=arr[i-1][j-1]+arr[i-1][j]; } } } for (int i = 0; i < arr.length; i++) { for (int j = i; j <n; j++) { System.out.print(" "); } for (int j = 0; j <=i; j++) { System.out.printf("%3d ",arr[i][j]); } System.out.println(); } } }
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