Code
public void SeeReleation() {

            IndexSearcher searcher = new IndexSearcher(this._indexDirectory);
            int i= searcher.MaxDoc();
            MultiFieldQueryParser parser = new MultiFieldQueryParser(new string[] { "KID"}, new StandardAnalyzer());
            Query query = parser.Parse("6000000260");
            //Hits sdsds= searcher.Search(query);
            Hits myHits = searcher.Search(query);

            searcher.Close();
            Console.WriteLine("KeyWord:"+myHits.Doc(0).Get("KeyWord"));
        }