不居中输出的代码如下：import java.io.*;
public class YangHui
{public static void main(String args[])throws IOException
{
BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
String str=br.readLine();
int ROW=Integer.parseInt(str);
int a[][]=new int[ROW+1][];
for(int i=0;i<=ROW;i++)
{
a[i]=new int[i+1]; //指定每行的列数

}
yanghui(a,ROW);
}

static void yanghui(int a[][],int ROW)
{

for(int i=0;i<=ROW;i++)
for(int j=0;j<=a[i].length-1;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<=ROW;i++)
{
for(int j=0;j<=a[i].length-1;j++)
System.out.print(a[i][j]+" ");
System.out.println();
}

}
}