using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Text;
using?System.Windows.Forms;
using?System.IO.Ports;

namespace?WindowsApplication1
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????SerialPort?port1?=?new?SerialPort（）;
????????string?InputData?=?String.Empty;
????????delegate?void?SetTextCallback（string?text）;

????????private?void?Port_Select（）
????????{//獲取機器中的串口地址
????????????string[]?ports?=?SerialPort.GetPortNames（）;
????????????foreach?（string?port?in?ports）
????????????{
????????????????comboBox1.Items.Add（port）;
????????????}
????????}

????????private?void?Form1_Load_1（object?sender?EventArgs?e）
????????{
????????????Port_Select（）;
????????????this.comboBox1.SelectedIndex?=?0;
????????????this.comboBox2.SelectedIndex?=?0;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????if?（button1.Text?==?“關閉串口“）??//當要關閉串口的時候
????????????{
????????????????port1.DiscardOutBuffer（）;
????????????????port1.DiscardInBuffer（）;
????????????????port1.Close（）;
????????????????button1.Text?=?“打開串口“;
????????????????label3.Text?=?“串口當前狀況：未打開“;
????????????????comboBox1.Enabled?=?true;
????????????????comboBox2.Enabled?=?true;
????????????}
????????????else?if?（button1.Text?==?“打開串口“）?//當要打開串口的時候
????????????{
????????????????try
????????????????{
????????????????????port1.PortName?=?comboBox1.SelectedItem.ToString（）;
????????????????????port1.BaudRate?=?Convert.ToInt32（comboBox2.SelectedItem）;
????????????????????port1.DataBits?=?8;
????????????????????port1.RtsEnable?=?true;
????????????????????port1.Open（）;
????????????????????port1.DiscardOutBuffer（）;
????????????????????port1.DiscardInBuffer（）;
????????????????????button1.Text?=?“關閉串口“;
????????????????????comboBox1.Enabled?=?false;
????????????????????comboBox2.Enabled?=?false;
????????????????????label3.Text?=?“串口：“?+?comboBox1.SelectedItem.ToString（）?+?“?波特率：“?+?comboBox2.SelectedItem.ToString（）?+?“??數據位：8?“;
????????????????}
????????????????catch
????????????????{
????????????????????button1.Text?=?“打開串口“;
????????????????????label3.Text?=?“串口：“?+?comboBox1.SelectedItem.ToString（）?+?“打開失敗“;
????????????????????MessageBox.Show（“該串口無法打開“）;
????????????????}
????????????}
????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{//刷新串口列表
????????????comboBox1.Items.Clear（）;
????????????Port_Select（）;
????????????this.comboBox1.SelectedIndex?=?0;
????????????this.comboBox2.SelectedIndex?=?0;
????????????comboBox1.Enabled?=?true;
????????????comboBox2.Enabled?=?true;
????????????port1.Close（）;
????????????button1.Text?=?“打開串口“;
????????????label3.Text?=?“串口當前狀況：未打開“;

????????}

????????private?void?button3_Click（object?sender?EventArgs?e）
????????{//發送數據
????????????byte[]?data?=?En

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\.vs\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\.vs\串口通訊\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\.vs\串口通訊\v14\
?????文件???????12800??2010-08-13?10:15??串口通訊C#\WindowsApplication1\.vs\串口通訊\v14\.suo
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\Backup\
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\
?????文件????????8094??2010-08-13?10:00??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Form1.Designer.cs
?????文件????????3490??2010-08-13?10:15??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Form1.cs
?????文件????????5814??2010-08-13?10:01??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Form1.resx
?????文件?????????478??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Program.cs
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\
?????文件????????1186??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\AssemblyInfo.cs
?????文件????????2894??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\Resources.Designer.cs
?????文件????????5612??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\Resources.resx
?????文件????????1104??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\Settings.Designer.cs
?????文件?????????249??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\Properties\Settings.settings
?????文件????????3245??2010-08-13?09:46??串口通訊C#\WindowsApplication1\Backup\Backup\WindowsApplication1\串口通訊.csproj
?????文件?????????932??2010-08-13?09:46??串口通訊C#\WindowsApplication1\Backup\Backup\串口通訊.sln
?????文件???????12800??2010-08-13?10:15??串口通訊C#\WindowsApplication1\Backup\Backup\串口通訊.suo
?????文件????????4025??2018-01-15?14:14??串口通訊C#\WindowsApplication1\Backup\UpgradeLog.xml
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\
?????文件????????8094??2010-08-13?10:00??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Form1.Designer.cs
?????文件????????3490??2010-08-13?10:15??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Form1.cs
?????文件????????5814??2018-01-15?14:53??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Form1.resx
?????文件?????????478??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Program.cs
?????目錄???????????0??2018-12-06?09:47??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Properties\
?????文件????????1186??2010-08-13?09:43??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Properties\AssemblyInfo.cs
?????文件????????2862??2018-01-15?14:14??串口通訊C#\WindowsApplication1\Backup\WindowsApplication1\Properties\Resources.Designer.cs
............此處省略68個文件信息