public Lexeme hasLexeme(char[] arrays,int begin,int end){
		Map<Character, CharCell> hit = rootCell.childsMap;
		CharCell cell ;
		Lexeme lexeme = null;
		for (int i = begin; i < end; i++) {
			cell = hit.get(arrays[i]);
			if(cell == null){
				return lexeme;
			}else{
				if(cell.cellState){
					lexeme = new Lexeme(begin, 0, cell.level, cell.lexemeType);
					lexeme.setLexemeText(CharacterUtil.parseString(arrays, lexeme.getBeginPosition(),lexeme.getEndPosition()));
				}
				hit = cell.childsMap;
			}
			if(hit == null){
				return lexeme;
			}
		}
		return lexeme;
	}