学步园

原文：java打印杨辉三角

源代码下载地址:http://www.zuidaima.com/share/1550463522032640.htm

java打印杨辉三角

package com.zuidaima.util;
public static void main(String[] args)
 {
     int i, j, n = 8, l, r;
     int a[] = new int[9];
     System.out.println(1);
     for (i = 1; i <= n; i++)
     {
         l = 1;
         System.out.print(1 + " ");
         for (j = 1; j <= i; j++)
         {
             r = a[j];
             a[j] = l + r; /* 每个数是上面两数之和 */
             l = r;
             System.out.print(a[j] + " ");
         }

         System.out.println();
     }
 }

运行后截图：