C# 현재 페이지 데이터 수집 및 저장

 private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                WebClient MyWebClient = new WebClient();
                MyWebClient.Credentials = CredentialCache.DefaultCredentials;//        Internet                
                Byte[] pageData = MyWebClient.DownloadData("https://blog.csdn.net/dQCFKyQDXYm3F8rB0/article/details/82990803"); //         
               // string pageHtml = Encoding.Default.GetString(pageData);
                string pageHtml = Encoding.UTF8.GetString(pageData);  //            UTF-8，     
                                                                     
                pageHtml = Regex.Replace(pageHtml, @"(\)|(\<style(.+?)\</style\>)", "", RegexOptions.IgnoreCase | RegexOptions.Singleline);
                int iBodyStart = pageHtml.IndexOf("<body", 0);
                int iStart = pageHtml.IndexOf("<main", iBodyStart);
                int iTableStart = pageHtml.IndexOf("<article", iStart);
                int iTableEnd = pageHtml.IndexOf("</article>", iTableStart);
                string strWeb = pageHtml.Substring(iTableStart, iTableEnd - iTableStart + 10);
                //    
                var r = new Regex(@"</?[^>]*>", RegexOptions.IgnoreCase);
                Match m;
                for (m = r.Match(strWeb); m.Success; m = m.NextMatch())
                {
                    strWeb = strWeb.Replace(m.Groups[0].ToString(), "");
                }
                Console.WriteLine(strWeb);//           
                using (StreamWriter sw = new StreamWriter("c:\\test\\ouput.html"))//          
                {
                    sw.Write(strWeb);
                }
                Console.ReadLine();
            }
            catch (WebException webEx)
            {
                Console.WriteLine(webEx.Message.ToString());
            }
        }</code></pre> 
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