Lucene.net是java平台搜索插件Lucene的移植版。它的主要用于开发搜索引擎，站内搜索等。

　　开篇之前，写个最简单的DEMO，让自己先体验下Lucene.net的魅力，顺便搭建环境。

static void Main(string[] args)        {            //写入数据到索引            Analyzer analyzer = new StandardAnalyzer(Lucene.Net.Util.Version.LUCENE_30);            Directory directory = new RAMDirectory();            IndexWriter.MaxFieldLength maxFieldLength = new IndexWriter.MaxFieldLength(10000);            using (IndexWriter writer = new IndexWriter(directory, analyzer, maxFieldLength))            {                Document document1 = new Document();                document1.Add(new Field("Sentence", "刘备", Field.Store.YES, Field.Index.ANALYZED));                writer.AddDocument(document1);                Document document2 = new Document();                document2.Add(new Field("Sentence", "张飞", Field.Store.YES, Field.Index.ANALYZED));                writer.AddDocument(document2);                Document document3 = new Document();                document3.Add(new Field("Sentence", "关羽", Field.Store.YES, Field.Index.ANALYZED));                writer.AddDocument(document3);                writer.Optimize();            }            //查找            using (IndexSearcher searcher = new IndexSearcher(directory))            {                Term t = new Term("Sentence", "飞");                Query query = new TermQuery(t);                TopDocs docs = searcher.Search(query, null, 1000);                Console.WriteLine(docs.TotalHits);                Console.WriteLine(docs.ScoreDocs[0].Doc);                Document doc = searcher.Doc(docs.ScoreDocs[0].Doc);                Console.WriteLine(doc.Get("Sentence"));            }            Console.ReadKey();        }

　　以上示例输出如下：