将网上的内容，读取到指定文件中【页面静态化】

protected void Button1_Click(object sender, EventArgs e)
        {
            System.IO.StringWriter sw = new StringWriter();
            Server.Execute("index.aspx", sw);
            string contentStr = sw.ToString();
            string filePath = Server.MapPath("/");
            filePath += "test.html";
            StreamWriter stw = new StreamWriter(filePath, false, System.Text.Encoding.Default);
            stw.Write(contentStr);
            stw.Flush();
            stw.Close();
        }