二维数组
package day3;
//1
//11
//121
//1331
//14641
//15101051
//yanghui[i][j]=yanghui[i-1][j-1]+yanghui[i-1][j]
public class text3 {
public static void main(String[] args){
int yanghui[][]=new int[10][];
//初始化二维数组
for(int i=0;i<yanghui.length;i++){
yanghui[i]=new int[i+1];
}
for(int i=0;i<yanghui.length;i++){
for (int j=0;j<yanghui[i].length;j++){
if(j==0||j==yanghui[i].length){
yanghui[i][0]=yanghui[i][i]=0;
}
else{
yanghui[i][j]=yanghui[i-1][j-1]+yanghui[i-1][j];
}
}
}
for(int i=0;i<yanghui.length;i++){
for(int j=0;j<yanghui[i].length;j++){
System.out.print(yanghui[i][j]+" ");
}
System.out.println();
}
}
}