常用两种页面抓取

抓取页面信息用WEB的方法我常用的有两种,一个是WEBCLIENT,一个是HttpWebRequest

 

       string strResponse;        string serverURL = "http://sohu.com";
        HttpWebRequest req = (HttpWebRequest)WebRequest.Create(serverURL);
        req.Method = "GET";
        StreamReader stIn = new StreamReader(req.GetResponse().GetResponseStream());
        strResponse = stIn.ReadToEnd();
        stIn.Close();

 

 

        WebClient wc = new WebClient();
        wc.Credentials = CredentialCache.DefaultCredentials;
        Byte[] pageData = wc.DownloadData("http://sohu.com");
        string s = System.Text.Encoding.Default.GetString(pageData);

 

 

性能上很多人说上面的比下面的要强一点,我测了下,下面的要快一些不知道为什么