public class 杨辉三角 {
 /**
	 * @param args
	 */
	public static void main(String[] args) {
			int a[][],i,j;
			for(i=0;i<=5;i++)
			{
				for(j=0;j<i;j++)
				{
					if(i==j||j==1) a[i][j]=1;
					else
						a[i][j]=a[i][j-1]+a[i-1][j-1];
					System.out.print(a[i][j]);
				}
				System.out.print("\n");
				}
	}
}
	
		// TODO Auto-generated method stub
原文:http://www.cnblogs.com/dx20152111104/p/6701730.html