利用WebClient和WebRequest类获得网页源代码

/// </summary>

private void InitializeComponent()

{

this.WebClientButton.Click += new System.EventHandler(this.WebClientButton_Click);

this.WebRequestButton.Click += new System.EventHandler(this.WebRequestButton_Click);

this.Load += new System.EventHandler(this.Page_Load);

}

#endregion

private void WebClientButton_Click(object sender, System.EventArgs e)

{

PageUrl = UrlText.Text;

WebClient wc = new WebClient();

wc.Credentials = CredentialCache.DefaultCredentials;

///方法一：

Byte[] pageData = wc.DownloadData(PageUrl);

ContentHtml.Text = Encoding.Default.GetString(pageData);

/// 方法二：

/// ***************代码开始**********

/// Stream resStream = wc.OpenRead(PageUrl);

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