关于Lucene分页标准

 public IEnumerable<SearchResult> Search(string keyword, string[] fieldNames, int pageSize, int pageIndex)
        {
            if (fieldNames.Length == )
            {
                return null;
            }

            // 计算开始的索引
            int start = pageSize * (pageIndex - );

            // 需要的记录数
            int count = start + pageSize;

            // 结果集
            TopScoreDocCollector results = TopScoreDocCollector.Create(count, false);

            try
            {
                var tem = new MultiPhraseQuery();

                QueryParser qp = new MultiFieldQueryParser(LuceneVersion.Version.LUCENE_30, fieldNames, analyzer);
                Query query = qp.Parse(keyword);
                // 查询填充结果集
                searcher.Search(query, results);
                //总条数
                var totalCount = results.TopDocs().TotalHits;
                //分页后的数据
                TopDocs topDocs = results.TopDocs(start, pageSize);

                return BuildSearchResult(topDocs, searcher);
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }