Lucene.net 实现全文搜索

Lucene.net 实现全文搜索(4)                 using(StreamReader sr=new StreamReader (path,System .Text .Encoding .Default ))
                {
                     html = sr.ReadToEnd();
                }
            }
            else
            {
                using (StreamReader sr = new StreamReader(path, System.Text.Encoding.Unicode  ))
                {
                    html = sr.ReadToEnd();
                }
            }

            int relativePathStartsAt = this.docRootDirectory.EndsWith("\\") ? this.docRootDirectory.Length : this.docRootDirectory.Length + 1;
            string relativePath = path.Substring(relativePathStartsAt);
            string title=Path.GetFileName(path);
           
            //判断若是网页则去标签否则不用
            if(exname.ToLower ()==".html" exname .ToLower ()==".htm")