从网页中获取源码和截取相应代码

     ///

    /// 从网页中获取源码
    ///

    ///
    ///
    ///
    private string GetSource(string Url, string charset)
    {
        if (charset == "" || charset == null) charset = "gb2312";
        string text1 = "";
        try
        {
            HttpWebRequest request1 = (HttpWebRequest)WebRequest.Create(Url);
            HttpWebResponse response1 = (HttpWebResponse)request1.GetResponse();
            Stream stream1 = response1.GetResponseStream();
            StreamReader reader1 = new StreamReader(stream1, Encoding.GetEncoding(charset));
            text1 = reader1.ReadToEnd();
           
            stream1.Close();
            response1.Close();
        }
        catch (Exception exception1)
        {
           

        }
        return text1;
    }

 

    ///

    /// 截取代码段
    ///

    ///
    ///
    ///
    ///
    public static string SniffwebCode(string code, string wordsBegin, string wordsEnd)
    {
        string NewsTitle = "";
        System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex("" + wordsBegin + @"(?