using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Threading;
using?System.Windows.Forms;

namespace?SerialPortDemo
{
????public?partial?class?FrmSerialPortMain?:?Form
????{
????????public?FrmSerialPortMain（）
????????{
????????????InitializeComponent（）;
????????????Control.CheckForIllegalCrossThreadCalls?=?false;
????????}

????????System.IO.Ports.SerialPort??myCOM;
????????bool?comHadOpened?=?false;
????????string?LasterCode?=?““;

????????private?void?btnOpenPort_Click（object?sender?EventArgs?e）
????????{
????????????if?（comHadOpened?==?false）
????????????{
????????????????try
????????????????{
????????????????????myCOM?=?new?System.IO.Ports.SerialPort（）;
????????????????????myCOM.PortName?=?“COM3“;
????????????????????myCOM.BaudRate?=?115200;??//?波特率
????????????????????myCOM.DataBits?=?8;???//?數據位
????????????????????myCOM.Parity?=?System.IO.Ports.Parity.None;??//?校驗位
????????????????????myCOM.StopBits?=?System.IO.Ports.StopBits.One;??//停止位
????????????????????myCOM.NewLine?=?“\r\n“;
????????????????????myCOM.RtsEnable?=?true;?//啟用請求發送信號
????????????????????myCOM.DtrEnable?=?true;?//啟用控制終端就續信號
????????????????????myCOM.ReadTimeout?=?3000;
????????????????????myCOM.ReceivedBytesThreshold?=?1;
????????????????????myCOM.DataReceived?+=?new?System.IO.Ports.SerialDataReceivedEventHandler（this.myCom_DataReceived）;

????????????????????myCOM.Open（）;
????????????????????comHadOpened?=?true;
????????????????}
????????????????catch?（Exception?ex）
????????????????{
????????????????????MessageBox.Show（ex.Message）;
????????????????}
????????????}
????????}

????????private?void?btnTriggerOn_Click（object?sender?EventArgs?e）
????????{
????????????TriggerOn（）;
????????}
??????
????????private?void?TriggerOn（）
????????{
????????????if?（comHadOpened?==?false）
????????????????return;
????????????try
????????????{
????????????????myCOM.WriteLine（this.txtONCommand.Text）;
????????????}
????????????catch?（Exception?ex）
????????????{
???????????????listBox1.Items.Add（“[“?+?DateTime.Now.ToString（“MM-dd?HH:mm:ss“）?+?“]??“?+?ex.Message）;
????????????????listBox1.SelectedIndex?=?listBox1.Items.Count?-?1;
????????????}
????????}

????????private?void?myCom_DataReceived（object?sender?System.IO.Ports.SerialDataReceivedEventArgs?e）
????????{
????????????Thread.Sleep（100）;
????????????byte[]?ReDatas?=?new?byte[myCOM.BytesToRead];
????????????myCOM.Read（ReDatas?0?ReDatas.Length）;//讀取數據
????????????string?recdata?=?new?ASCIIEncoding（）.GetString（ReDatas）;
????????????if?（LasterCode!=recdata）
????????????{
????????????????listBox1.Items.Add（“[“?+?DateTime.Now.ToString（“MM-dd?HH:mm:ss“）?+?“]??“?+?recdata）;
????????????????listBox1.SelectedIndex?=?listBox1.Items.Count?-?1;
????????????????LasterCode?=?recdata;
????????????}
????????}

????????private?void?FrmSerialPortMain_F

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

?????文件???????3645??2021-07-07?17:01??SerialPortDemo.csproj

?????文件?????201216??2021-07-09?08:52??bin\Debug\SerialPortDemo.exe

?????文件??????40448??2021-07-09?08:52??bin\Debug\SerialPortDemo.pdb

?????文件????????208??2021-07-05?15:43??obj\Debug\.NETframeworkVersion=v4.0.AssemblyAttributes.cs

?????文件???????2477??2021-07-22?11:11??obj\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7069??2021-07-07?17:01??obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件?????????11??2021-07-09?08:52??obj\Debug\SerialPortDemo.csproj.AssemblyReference.cache

?????文件?????????42??2021-07-07?17:13??obj\Debug\SerialPortDemo.csproj.CoreCompileInputs.cache

?????文件???????2104??2021-07-07?17:13??obj\Debug\SerialPortDemo.csproj.FileListAbsolute.txt

?????文件???????1082??2021-07-08?09:42??obj\Debug\SerialPortDemo.csproj.GenerateResource.cache

?????文件?????201216??2021-07-09?08:52??obj\Debug\SerialPortDemo.exe

?????文件??????93420??2021-07-06?12:56??obj\Debug\SerialPortDemo.Form1.resources

?????文件??????93420??2021-07-08?09:42??obj\Debug\SerialPortDemo.FrmSerialPortMain.resources

?????文件??????40448??2021-07-09?08:52??obj\Debug\SerialPortDemo.pdb

?????文件????????180??2021-07-07?17:13??obj\Debug\SerialPortDemo.Properties.Resources.resources

?????文件???????1320??2021-07-05?15:43??Properties\AssemblyInfo.cs

?????文件???????2860??2021-07-05?15:43??Properties\Resources.Designer.cs

?????文件???????5612??2021-07-05?15:43??Properties\Resources.resx

?????文件???????1099??2021-07-05?15:43??Properties\Settings.Designer.cs

?????文件????????249??2021-07-05?15:43??Properties\Settings.settings

?????文件???????5025??2021-07-09?08:52??FrmSerialPortMain.cs

?????文件??????12754??2021-07-08?09:42??FrmSerialPortMain.Designer.cs

?????文件?????145595??2021-07-08?09:42??FrmSerialPortMain.resx

?????文件??????92854??2021-07-06?12:52??o11.ico

?????文件????????507??2021-07-07?17:01??Program.cs

?????目錄??????????0??2021-06-29?17:15??obj\Debug\TempPE

?????目錄??????????0??2021-06-29?17:23??bin\Debug

?????目錄??????????0??2021-07-07?17:01??bin\Release

?????目錄??????????0??2021-07-22?11:11??obj\Debug

?????目錄??????????0??2021-07-07?17:01??bin

............此處省略5個文件信息