int main()
{
int i,j,x;
printf("\n\n**************空框**************\n\n\n");
for (i=0;i<=9;i++)
{
printf("\t");
for (j=1;j<=9-i;j++)
{
printf("*");
}
for (j=1;j<=i*2;j++)
printf(" ");
for (x=1;x<=9-i;x++)
printf("*");
printf("\n");
}
for (i=1;i<=9;i++)
{
printf("\t");
for (j=1;j<=i;j++)
printf("*");
for (j=1;j<=(9-i)*2;j++)
{
printf(" ");
}
for (x=1;x<=i;x++)
{
printf("*");
}
printf("\n");