text: /*
   * =====================================================================================
   *
   *       Filename:  a.c
   *
   *    Description:  hello
   *
   *        Version:  1.0
   *        Created:  2019/3/27 21:43:36
   *       Revision:  none
   *       Compiler:  gcc
   *
   *         Author:  YOUR NAME (), 
   *   Organization:  
   *
   * =====================================================================================
   */
  
  
  int main(int argc, const char *argv[])
  {
      printf("%s\n","fdsf");
      printf("charf = %f\n", charf);
      return 0;
  }
  