static void CreateIndex()
        {
            //创建索引库目录
            var directory = FSDirectory.Open(new DirectoryInfo(path));
            Analyzer analyzer = null;
            //analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29);

            if (isPangu)
            {
                analyzer = new PanGuAnalyzer();//盘古Analyzer
            }
            else
            {
                analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_29);
            }

            //创建一个索引,采用StandardAnalyzer对句子进行分词
            IndexWriter indexWriter = new IndexWriter(directory, analyzer, true, IndexWriter.MaxFieldLength.LIMITED);


            var sql = "select * from T_News";
            using (var reader = SqlHelper.ExecuteReader(Conn, CommandType.Text, sql))
            {
                while (reader.Read())
                {
                    //域的集合：文档，类似于表的行
                    Document doc = new Document();
                    //要索引的字段
                    doc.Add(new Field("Title", reader["Title"].ToString(), Field.Store.YES, Field.Index.ANALYZED));
                    doc.Add(new Field("NewContent", reader["NewContent"].ToString(), Field.Store.YES, Field.Index.ANALYZED));
                    indexWriter.AddDocument(doc);
                }
            }
            //对索引文件进行优化
            indexWriter.Optimize();
            indexWriter.Close();
        }