using MQTTnet.Samples.Client; namespace MqttConsoleAppClient { using static Client_Connection_Samples; internal class Program { static void Main(string[] args) { Console.WriteLine("mqtt客户端启动"); try { //Connect_Client_Timeout() Connect_Client().Wait(); } catch (Exception ex) { throw ex; } Console.WriteLine("输入任意字符退出"); Console.ReadLine(); } } }