到这里，该说的，都说了，后附上，C#  https POST的代码吧。
class ProgramTest
{
static void Main(string[] args)
{
string url = "https://www.test.com";
string result = PostUrl(url， "key=123"); // key=4da4193e-384b-44d8-8a7f-2dd8b076d784
Console.WriteLine(result);
Console.WriteLine("OVER");
Console.ReadLine();
}
private static string PostUrl(string url， string postData)
{
HttpWebRequest request = null;
if (url.StartsWith("https"， StringComparison.OrdinalIgnoreCase))
{
request = WebRequest.Create(url) as HttpWebRequest;
ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(CheckValidationResult);
request.ProtocolVersion = HttpVersion.Version11;
// 这里设置了协议类型。
ServicePointManager.SecurityProtocol = (SecurityProtocolType)3072;// SecurityProtocolType.Tls1.2;
request.KeepAlive = false;
ServicePointManager.CheckCertificateRevocationList = true;
ServicePointManager.DefaultConnectionLimit = 100;
ServicePointManager.Expect100Continue = false;
}
else
{
request = (HttpWebRequest)WebRequest.Create(url);
}
request.Method = "POST";    //使用get方式发送数据
request.ContentType = "application/x-www-form-urlencoded";
request.Referer = null;
request.AllowAutoRedirect = true;
request.UserAgent = "Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";
request.Accept = "*/*";
byte[] data = Encoding.UTF8.GetBytes(postData);
Stream newStream = request.GetRequestStream();
newStream.Write(data， 0， data.Length);
newStream.Close();
//获取网页响应结果
HttpWebResponse response = (HttpWebResponse)request.GetResponse();
Stream stream = response.GetResponseStream();
//client.Headers.Add("Content-Type"， "application/x-www-form-urlencoded");
string result = string.Empty;
using (StreamReader sr = new StreamReader(stream))
{
result = sr.ReadToEnd();
}
return result;
}
private static bool CheckValidationResult(object sender， X509Certificate certificate， X509Chain chain， SslPolicyErrors errors)
{
return true; //总是接受
}
}