C示例等边三角形

#include <stdio.h>



int main() {

   int n,i,j;



   n = 5;   // number of rows.



   for(i = 1; i <= n; i++) {

      for(j = 1; j <= n-i; j++)

         printf(" ");



      for(j = 1; j <= i; j++)

         printf("* ");



      printf("\n");

   }

   return 1;

}