public List<Element> find(String selector){
  String[] ss=selector.split(" ");
  List<Element> list=new ArrayList<Element>();
  list.add(d);
  for (  String s : ss) {
    if (X.isEmpty(s)) {
      continue;
    }
    list=_find(list,s);
  }
  return list;
}

public List < Element > find ( String selector ) { String [ ] ss = selector . split ( " " ) ; List < Element > list = new ArrayList < Element > ( ) ; list . add ( d ) ; for ( String s : ss ) { if ( X . isEmpty ( s ) ) { continue ; } list = _find ( list , s ) ; } return list ; }
find the element by the selector < br > .
