//c how to program 习题2.21
#include <stdio.h>
int main(void)
{
printf("********* *** * *");
printf("\n");
printf("* * * * *** * *");
printf("\n");
printf("* * * * ***** * *");
printf("\n");
printf("* * * * * * *");
printf("\n");
printf("* * * * * * *");
printf("\n");
printf("* * * * * * *");
printf("\n");
printf("* * * * * * *");
printf("\n");
printf("* * * * * * *");
printf("\n");
printf("********* *** * *");
printf("\n");
}