public static void start()
{
HttpClient httpClient = new HttpClient();
httpClient
.PostAsync("http://hd.huachuan.gov.cn/aspx/gkml_list.aspx", null)
.ContinueWith((postTask) =>
{
HttpResponseMessage response = postTask.Result;
string cookie = response.Headers.GetValues("Set-Cookie").FirstOrDefault().Split(';')[0].Split('=')[1];
Debug.WriteLine("----->响应cookie<-----：" + cookie);
response.Content.ReadAsStringAsync().ContinueWith((readTask) =>
{
IHtmlDocument source = new JumonyParser().Parse(readTask.Result);
string viewState = source.FindSingle("input[name=__VIEWSTATE]").Attribute("value").Value();
int totalPage = int.Parse(source.FindLast("option").InnerText());
Debug.WriteLine("----->数据总页数<-----：" + totalPage);
for (int i = 1; i <= totalPage; i++)
{
getByPage(cookie, viewState, i);
}
});
});
}