C#獲取指定網頁源碼

/// <summary>
/// 獲取網頁源碼
/// </summary>
/// <param name="Url">鏈接</param>
/// <param name="CharSet">編碼</param>
/// <returns></returns>
public static string GetSource(string Url, string CharSet = "GB2312")
{
    using (WebClient myWebClient = new WebClient())
    {
        using (Stream myStream = myWebClient.OpenRead(Url))
        {
            using (StreamReader sr = new StreamReader(myStream, System.Text.Encoding.GetEncoding(CharSet)))
            {
                return sr.ReadToEnd();
            }
        }
    }
}