public class Test6
{
public static void main(String[]args)
{
//设定长宽
int x =9,y=9;
//上方三角形
for (int i=0;i<(x+1)/2 ;i++ )
{
for (int l = 0;l<y/2-i ;l++ )
{
System.out.print(" ");
}
for (int l = 1;l<(i+1)*2 ;l++ )
{
System.out.print("*");
}
System.out.println();
}
//下方三角形
for (int i=1;i<=x/2 ;i++ )
{
for (int l = 1;l<=i ;l++ )
{
System.out.print(" ");
}
for (int l = 1;l<=y-2*i ;l++ )
{
System.out.print("*");
}
System.out.println();
}
}
}
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