Question

java如何实现金字塔形杨辉三角

Answer 1

package yangsan;
/*打印杨辉三角*/
public class YangSan {
public static void main(String[] args){
int r=6;
int[][] a=new int [r+1][];
for(int i=0;i<=r;i++){
a[i]=new int[i+1];
}
Yanghui(a,r);
}
static void Yanghui(int a[][],int r){
for(int i=0;i<=r;i++){
for(int j=0;j<a[i].length;j++){
if(i==0||j==0||j==a[i].length-1)
a[i][j]=1;
else
a[i][j]=a[i-1][j-1]+a[i-1][j];

}
}
for(int i=0;i<=r;i++){
for(int j=r-i;j>0;j--)
System.out.print(" ");
for(int j=0;j<a[i].length;j++){
System.out.print(a[i][j]+" ");
}
System.out.println();
}
}
}

Answer 2

QQ我个你传个代码和实现过去