誰知道用for作出以下圖像;
*
***
*****
*******
*********

class JAVA
{
public static void main (String[] args)
{
for (int i=-9;i<=0;i+=2)
{
for(int j=1;j<=Math.abs(i)/2;j+=1)
System.out.print(" ");
for(int j=1;j<=10-Math.abs(i);j+=1)
System.out.print("*");
System.out.println();
}
}
}
