C# winfrom WebRequest获取html网页信息 引用using

private string GetHtmlinfo(string PageUrl)

{

WebRequest request = WebRequest.Create(PageUrl);

WebResponse response = request.GetResponse();

Stream resStream = response.GetResponseStream();

StreamReader sr = new StreamReader(resStream, System.Text.Encoding.Default);

string htmlinfo = sr.ReadToEnd();

resStream.Close();

sr.Close();

return htmlinfo;

}