using?MQTTnet;
using?MQTTnet.Core;
using?MQTTnet.Core.Client;
using?MQTTnet.Core.Packets;
using?MQTTnet.Core.Protocol;
using?System;
using?System.Collections.Generic;
using?System.Text;
using?System.Threading.Tasks;
using?System.Windows.Forms;

namespace?MqttNetClient
{
????public?partial?class?FrmMqttClient?:?Form
????{
????????private?MqttClient?mqttClient?=?null;

????????public?FrmMqttClient（）
????????{
????????????InitializeComponent（）;

????????????Task.Run（async?（）?=>?{?await?ConnectMqttServerAsync（）;?}）;
????????}

????????///?

????????///?連接服務器
????????///?

????????///?
????????private?async?Task?ConnectMqttServerAsync（）
????????{
????????????if?（mqttClient?==?null）
????????????{
????????????????mqttClient?=?new

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

????..A..H.????133120??2019-08-20?15:38??MqttNetTest\.vs\MqttNetTest\v15\.suo

?????文件??????????0??2019-05-27?16:27??MqttNetTest\.vs\MqttNetTest\v15\Server\sqlite3\db.lock

?????文件????1454080??2019-05-29?09:13??MqttNetTest\.vs\MqttNetTest\v15\Server\sqlite3\storage.ide

?????文件??????32768??2019-08-20?15:22??MqttNetTest\.vs\MqttNetTest\v15\Server\sqlite3\storage.ide-shm

?????文件????3823392??2019-08-20?15:02??MqttNetTest\.vs\MqttNetTest\v15\Server\sqlite3\storage.ide-wal

?????文件?????429020??2019-03-14?10:11??MqttNetTest\.vs\MqttTest\DesignTimeBuild\.dtbcache

????..A..H.????130560??2019-05-27?16:24??MqttNetTest\.vs\MqttTest\v15\.suo

?????文件??????????0??2018-02-03?08:30??MqttNetTest\.vs\MqttTest\v15\Server\sqlite3\db.lock

?????文件????4931584??2019-05-27?16:24??MqttNetTest\.vs\MqttTest\v15\Server\sqlite3\storage.ide

?????文件????????562??2018-03-12?15:22??MqttNetTest\MqttNetClient\App.config

?????文件?????728576??2016-12-15?06:16??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.ActiveMQ.dll

?????文件????3550720??2016-12-15?06:16??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.ActiveMQ.pdb

?????文件?????590688??2016-12-15?06:16??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.ActiveMQ.xml

?????文件??????65024??2015-10-17?11:31??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.dll

?????文件?????196096??2015-10-17?11:31??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.pdb

?????文件?????145105??2015-10-17?11:31??MqttNetTest\MqttNetClient\bin\Debug\Apache.NMS.xml

?????文件??????22768??2018-01-04?09:41??MqttNetTest\MqttNetClient\bin\Debug\Microsoft.Win32.Primitives.dll

?????文件??????14848??2019-05-27?16:55??MqttNetTest\MqttNetClient\bin\Debug\MqttClientWin.exe

?????文件????????562??2018-03-12?15:22??MqttNetTest\MqttNetClient\bin\Debug\MqttClientWin.exe.config

?????文件??????28160??2019-05-27?16:55??MqttNetTest\MqttNetClient\bin\Debug\MqttClientWin.pdb

?????文件??????90112??2017-10-09?19:47??MqttNetTest\MqttNetClient\bin\Debug\MQTTnet.Core.dll

?????文件??????20480??2017-10-09?19:47??MqttNetTest\MqttNetClient\bin\Debug\MQTTnet.dll

?????文件??????14848??2019-08-20?15:03??MqttNetTest\MqttNetClient\bin\Debug\MqttNetClient.exe

?????文件????????562??2018-03-12?15:22??MqttNetTest\MqttNetClient\bin\Debug\MqttNetClient.exe.config

?????文件??????28160??2019-08-20?15:03??MqttNetTest\MqttNetClient\bin\Debug\MqttNetClient.pdb

?????文件??????20168??2018-01-04?09:41??MqttNetTest\MqttNetClient\bin\Debug\System.AppContext.dll

?????文件??????34496??2018-01-04?09:41??MqttNetTest\MqttNetClient\bin\Debug\System.Console.dll

?????文件??????35760??2018-01-04?09:42??MqttNetTest\MqttNetClient\bin\Debug\System.Diagnostics.DiagnosticSource.dll

?????文件??????29658??2018-01-04?09:42??MqttNetTest\MqttNetClient\bin\Debug\System.Diagnostics.DiagnosticSource.xml

?????文件??????23296??2018-01-04?09:41??MqttNetTest\MqttNetClient\bin\Debug\System.Globalization.Calendars.dll

............此處省略4678個文件信息