unsigned int pfun ( unsigned int *pa );

int main ( void )
{
  unsigned int data;
  unsigned int result;

  result = pfun ( &data );

  return ( 0 );
}

unsigned int pfun ( unsigned int *pa )
{
  static unsigned int i = 10;

  i  = i + 1;
  pa = &i;     //违背1
  
  return i;
}