int add(char a){
switch (a)
{char xdata *ad;
case 0: ad=&hua0[0];
break;
case 0: ad=&hua1[0];
break;
case 0: ad=&hua2[0];
break;
default:;
}
}
char xdata hua0[]={0};
char xdata hua1[]={0};
char xdata hua2[]={0};
char xdata hua3[]={0};