问如何在c#中连接mqtt和websocket？

EN

using MQTTnet;
using MQTTnet.Client;
using MQTTnet.Client.Connecting;
using MQTTnet.Client.Options;

public override void Run()
{
    var option = new MqttClientOptionsBuilder()
                    .WithWebSocketServer("wss://mymqttserver:443")
                    .WithClientId(Guid.NewGuid().ToString())
                    .WithTls(new MqttClientOptionsBuilderTlsParameters()
                    {
                        AllowUntrustedCertificates = true,
                        UseTls = true,
                        SslProtocol = SslProtocols.Tls12,
                        CertificateValidationCallback = delegate { return true; },
                    })
                    .WithCleanSession()
                    .Build();
    var mqtt = new MqttFactory().CreateMqttClient() as MqttClient;
    mqtt.ConnectAsync(option).Wait();
    
    string convertMsg = JsonConvert.SerializeObject("Mqtt Connect Successfully!!");

    var appMsg = new MqttApplicationMessage();
    appMsg.Payload = Encoding.UTF8.GetBytes(convertMsg);
    appMsg.Topic = "myTopic";
    appMsg.QualityOfServiceLevel = MqttQualityOfServiceLevel.AtLeastOnce;
    appMsg.Retain = false;

    mqttClient.PublishAsync(appMsg).Wait();
}