第四天 简单的输出十行杨辉三角

package come.axi.exr;
import java.util.Scanner;
/**
*
* @Description
* @author axi Email:2681654638@qq.com
* @version
* @date 2021年2月19日下午11:16:40
*
*/
public class ArryDemo {
public static void main(String[] args)
{
Scanner scan = new Scanner(System.in);
int n = scan.nextInt();
int[][] yangHui = new int[n][n];
for(int i = 0; i < n; i++)
{
yangHui[i][0] = 1;
yangHui[i][i] = 1;
}
for(int i = 2; i < n; i++)
{
for(int j = 1;j < i; j++)
{
yangHui[i][j] = yangHui[i-1][j-1]+yangHui[i-1][j];
}
}
for(int i = 0;i < n; i++)
{
for(int j = 0; j <= i; j++)
{
System.out.print(yangHui[i][j]+" ");
}
System.out.println("");
}
}
}