public static string HttpPost(string url, CookieContainer cookieContainer = null, Dictionary<string, string> formData = null, Encoding encoding = null, X509Certificate cer = null,int timeOut = Config.TIME_OUT) { MemoryStream ms = new MemoryStream(); formData.FillFormDataStream(ms);//填充formData return HttpPost(url, cookieContainer, ms, null, null, encoding,cer, timeOut); }