方法一：

#include "udf.h"
DEFINE_ON_DEMAND(species_list)
{
int i = -1;
char *spe_name;
Domain *d=NULL;
Material *mix_mat=NULL;
d=Get_Domain(1);
mix_mat= mixture_material(d);
mixture_species_loop_i(mix_mat,i)
{
spe_name=MIXTURE_SPECIE_NAME(mix_mat,i);
Message0("species index=%d,species name=%s\n",i,spe_name);
}
}

方法二：

#include "udf.h"
DEFINE_ON_DEMAND(M_species_list)
{
int i;

i = SV_SpeciesIndex("h2o");

Message("species index=%d,species name=h2o\n",i);

}