package lanqiao;
public class YangHui {
public static void main(String[] args) {
// TODO Auto-generated method stub
int[][] yanghui = new int[5][]; //5表示行数，可以修改
for(int i = 0 ; i < yanghui.length ; i++) {
//为一维数组创建空间
yanghui[i] = new int[i + 1];
for(int j = 0 ; j <= yanghui[i].length - 1 ; j++) {
if(j == 0 || j ==yanghui[i].length - 1) {
yanghui[i][j] = 1;
}else {
yanghui[i][j] = yanghui[i - 1][j] + yanghui[i - 1][j - 1];
}
}
}
//输出杨辉三角
for(int i = 0 ; i < yanghui.length ; i++) {
for(int j = 0 ; j < yanghui[i].length ; j++) {
System.out.print(yanghui[i][j] + " ");
}
//输出换行
System.out.println();
}
}
}
运行结果如下：
