通过URL返回请求的内容 C#

public static string getPageInfo(String url)
        {
            WebResponse wr_result = null;
            StringBuilder txthtml = new StringBuilder();
            try
            {
                WebRequest wr_req = WebRequest.Create(url);
                wr_result = wr_req.GetResponse();
                Stream ReceiveStream = wr_result.GetResponseStream();
                //Encoding encode = System.Text.Encoding.GetEncoding("gb2312");
                //Encoding encode = Encoding.Unicode;
                Encoding encode = Encoding.UTF8;
                StreamReader sr = new StreamReader(ReceiveStream, encode);
                if (true)
                {
                    Char[] read = new Char[256];
                    int count = sr.Read(read, 0, 256);
                    while (count > 0)
                    {
                        String str = new String(read, 0, count);
                        txthtml.Append(str);
                        count = sr.Read(read, 0, 256);
                    }
                }
            }
            catch (Exception)
            {
                txthtml.Append("err");
            }
            finally
            {
                if (wr_result != null)
                {
                    wr_result.Close();
                }
            }
            return txthtml.ToString();
        }

参考：

​​http://hi.baidu.com/qljwm/item/5122708b41ad0655e73d1904​​

​​javascript:void(0)​​  网络爬虫

​​http://www.dezai.cn/Channel/Web/ArticleShow.aspx?AI=76467​​  C#抓取网页数据、分析并且去除HTML标签

​​javascript:void(0)​​  爬虫/蜘蛛程序的制作（C#语言）

​​javascript:void(0)​​ 蜘蛛/爬虫程序的多线程控制（C#语言）

​​http://www.dezai.cn/Channel/Web/ArticleShow.aspx?AI=76467​​  C#抓取网页源代码(HTML代码)方法

 ​​javascript:void(0)​​​ ​​c#关于网页内容抓取，简单爬虫的实现。（包括动态，静态的）​​

​​http://www.189works.com/article-43227-1.html​​  C# 抓取网页内容（转)