\n| \u6821\u9a8c\u4f4d Parity<\/td>\n | \u9519\u8bef\u68c0\u6d4b\u65b9\u5f0f<\/td>\n | \u65e0（None）\u3001\u5947\u6821\u9a8c（Odd）\u3001\u5076\u6821\u9a8c（Even）<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u6700\u5e38\u7528\u7684\u7ec4\u5408：9600 \u6ce2\u7279\u7387 + 8\u6570\u636e\u4f4d + 1\u505c\u6b62\u4f4d + \u65e0\u6821\u9a8c，\u7b80\u79f0
\n 9600-8-N-1\u3002\u65b0\u8bbe\u5907\u9ed8\u8ba4\u57fa\u672c\u90fd\u662f\u8fd9\u4e2a\u3002<\/p>\n 6\u52a8\u624b\u524d\u51c6\u5907：\u865a\u62df\u4e32\u53e3\u5de5\u5177<\/h3>\n\u5199\u4e32\u53e3\u7a0b\u5e8f\u6700\u5934\u75bc\u7684\u662f\u2014\u2014\u6ca1\u6709\u786c\u4ef6\u600e\u4e48\u6d4b\u8bd5？<\/p>\n \u7b54\u6848\u662f\u7528\u865a\u62df\u4e32\u53e3\u8f6f\u4ef6（\u5982 Virtual Serial Port Driver），\u5b83\u80fd\u5728\u7535\u8111\u4e0a\u521b\u5efa\u4e00\u5bf9"\u865a\u62df\u4e32\u53e3"，\u6bd4\u5982 COM3 \u548c COM4，\u4e24\u8005\u5185\u90e8\u4e92\u8fde\u3002\u4f60\u7528\u81ea\u5df1\u7684\u7a0b\u5e8f\u6253\u5f00 COM3，\u7528\u4e32\u53e3\u52a9\u624b\u6253\u5f00 COM4，\u5c31\u80fd\u4e92\u76f8\u6536\u53d1\u6570\u636e\u4e86\u3002<\/p>\n \u865a\u62df\u4e32\u53e3\u5bf9\u662f
\n \u6210\u5bf9\u51fa\u73b0\u7684：\u53d1\u5f80 COM3 \u7684\u6570\u636e\u4f1a\u51fa\u73b0\u5728 COM4，\u53cd\u4e4b\u4ea6\u7136\u3002\u8fd9\u662f\u5f00\u53d1\u8c03\u8bd5\u7684\u795e\u5668，\u4e0d\u9700\u8981\u4efb\u4f55\u771f\u5b9e\u786c\u4ef6\u3002<\/p>\n \u8d44\u6599\u4e2d\u9644\u5e26\u4e86 Virtual Serial Port Driver 6.9 \u548c \u4e32\u53e3\u52a9\u624b.exe，\u5b89\u88c5\u540e\u521b\u5efa\u4e00\u5bf9\u865a\u62df\u4e32\u53e3\u5373\u53ef\u5f00\u59cb\u8c03\u8bd5\u3002<\/p>\n 7C# \u7b2c\u4e00\u6b65：\u626b\u63cf\u5e76\u6253\u5f00\u4e32\u53e3<\/h3>\nC# \u64cd\u4f5c\u4e32\u53e3\u975e\u5e38\u7b80\u5355，.NET Framework \u5185\u7f6e\u4e86 System.IO.Ports.SerialPort \u7c7b，\u65e0\u9700\u7b2c\u4e09\u65b9\u5e93\u3002<\/p>\n \u2460 \u626b\u63cf\u7535\u8111\u4e0a\u7684\u53ef\u7528\u4e32\u53e3<\/h4>\n using System.IO.Ports;<\/p>\n \/\/ \u83b7\u53d6\u5f53\u524d\u7535\u8111\u6240\u6709\u53ef\u7528\u4e32\u53e3\u540d
\nstring[] ports = SerialPort.GetPortNames();
\n\/\/ \u7ed1\u5b9a\u5230\u4e0b\u62c9\u6846
\ncbPort.DataSource = ports; <\/p>\n \u2461 \u914d\u7f6e\u4e32\u53e3\u56db\u8981\u7d20<\/h4>\n \/\/ \u6ce2\u7279\u7387
\n_serialPort.BaudRate = 9600;
\n\/\/ \u6570\u636e\u4f4d
\n_serialPort.DataBits = 8;
\n\/\/ \u505c\u6b62\u4f4d（\u679a\u4e3e）
\n_serialPort.StopBits = StopBits.One;
\n\/\/ \u6821\u9a8c\u4f4d（\u679a\u4e3e）
\n_serialPort.Parity = Parity.None; <\/p>\n \u2462 \u6253\u5f00 \/ \u5173\u95ed\u4e32\u53e3<\/h4>\n private void button1_Click(object sender, EventArgs e)
\n{
\n if (button1.Text == "\u6253\u5f00")
\n {
\n if (cbPort.SelectedIndex == -1)
\n {
\n MessageBox.Show("\u7535\u8111\u8fd8\u6ca1\u6709\u53ef\u7528\u7684\u4e32\u53e3，\u8bf7\u5148\u914d\u7f6e");
\n return;
\n }
\n try
\n {
\n _serialPort.PortName = cbPort.SelectedItem.ToString();
\n _serialPort.BaudRate = Convert.ToInt32(cbBaudRate.SelectedItem);
\n _serialPort.Open(); \/\/ \u6253\u5f00\u4e32\u53e3
\n button1.Text = "\u5173\u95ed";
\n }
\n catch (Exception ex)
\n {
\n MessageBox.Show($"\u4e32\u53e3\u6253\u5f00\u5931\u8d25:{ex.Message}");
\n }
\n }
\n else
\n {
\n _serialPort.Close(); \/\/ \u5173\u95ed\u4e32\u53e3
\n button1.Text = "\u6253\u5f00";
\n }
\n} <\/p>\n \u6253\u5f00\u4e32\u53e3\u4e00\u5b9a\u8981\u7528
\n try-catch！\u4e32\u53e3\u88ab\u5176\u4ed6\u7a0b\u5e8f\u5360\u7528\u3001\u53c2\u6570\u9519\u8bef\u90fd\u4f1a\u629b\u5f02\u5e38\u3002<\/p>\n 8\u63a5\u6536\u6570\u636e：DataReceived \u4e8b\u4ef6\u4e0e\u8de8\u7ebf\u7a0bUI<\/h3>\n\u4e32\u53e3\u6536\u5230\u6570\u636e\u65f6\u4f1a\u89e6\u53d1 DataReceived \u4e8b\u4ef6\u3002\u4f46\u6709\u4e2a\u5927\u5751：\u8fd9\u4e2a\u4e8b\u4ef6\u8fd0\u884c\u5728\u540e\u53f0\u7ebf\u7a0b，\u4e0d\u80fd\u76f4\u63a5\u64cd\u4f5cUI\u63a7\u4ef6，\u5fc5\u987b\u7528 Invoke \u5207\u56deUI\u7ebf\u7a0b\u3002<\/p>\n public Form1()
\n{
\n InitializeComponent();
\n \/\/ \u6ce8\u518c\u6570\u636e\u63a5\u6536\u4e8b\u4ef6
\n _serialPort.DataReceived += _serialPort_DataReceived;
\n}<\/p>\n private void _serialPort_DataReceived(object sender, SerialDataReceivedEventArgs e)
\n{
\n \/\/ 1. \u6839\u636e\u53ef\u8bfb\u5b57\u8282\u6570\u521b\u5efa\u7f13\u51b2\u533a
\n byte[] readData = new byte[_serialPort.BytesToRead];<\/p>\n \/\/ 2. \u8bfb\u53d6\u6570\u636e\u5230\u7f13\u51b2\u533a
\n _serialPort.Read(readData, 0, readData.Length);<\/p>\n \/\/ 3. \u5b57\u8282\u6570\u7ec4\u8f6c\u5b57\u7b26\u4e32（UTF8\u7f16\u7801）
\n string receiveMsg = Encoding.UTF8.GetString(readData);<\/p>\n \/\/ 4. \u8de8\u7ebf\u7a0b\u66f4\u65b0UI（\u5fc5\u987b！）
\n this.Invoke(new Action(() =>
\n {
\n richTextBox1.AppendText(receiveMsg + "\\\\r\\\\n");
\n }));
\n} <\/p>\n \u4e3a\u4ec0\u4e48\u5fc5\u987b Invoke？WinForms \u63a7\u4ef6\u4e0d\u662f\u7ebf\u7a0b\u5b89\u5168\u7684，\u540e\u53f0\u7ebf\u7a0b\u76f4\u63a5\u6539\u63a7\u4ef6\u5c5e\u6027\u4f1a\u62a5"\u7ebf\u7a0b\u95f4\u64cd\u4f5c\u65e0\u6548"\u5f02\u5e38\u3002
\n Invoke \u628a\u64cd\u4f5c\u5c01\u9001\u5230UI\u7ebf\u7a0b\u6267\u884c\u3002<\/p>\n \u4e32\u53e3\u63a5\u6536\u662f
\n \u5f02\u6b65\u7684，\u6570\u636e\u53ef\u80fd\u5206\u591a\u6b21\u5230\u8fbe\u3002\u5982\u679c\u9700\u8981\u62fc\u5305，\u8981\u81ea\u5df1\u7ef4\u62a4\u7f13\u51b2\u533a\u548c\u534f\u8bae\u89e3\u6790\u903b\u8f91\u3002<\/p>\n 9\u53d1\u9001\u6570\u636e：\u6587\u672c\u6a21\u5f0f\u4e0e\u5341\u516d\u8fdb\u5236\u6a21\u5f0f<\/h3>\n\u53d1\u9001\u6570\u636e\u5f88\u7b80\u5355，\u8c03\u7528 Write \u65b9\u6cd5\u5373\u53ef\u3002\u4f46\u8981\u6ce8\u610f：\u4e32\u53e3\u4f20\u8f93\u7684\u662f\u5b57\u8282，\u5b57\u7b26\u4e32\u9700\u8981\u5148\u7f16\u7801\u3002<\/p>\n \u6587\u672c\u6a21\u5f0f\u53d1\u9001<\/h4>\n \/\/ \u5b57\u7b26\u4e32 \u2192 UTF8\u5b57\u8282\u6570\u7ec4 \u2192 \u53d1\u9001
\nbyte[] writeData = Encoding.UTF8.GetBytes(chatMsg.Text);
\n_serialPort.Write(writeData, 0, writeData.Length); <\/p>\n \u5341\u516d\u8fdb\u5236\u6a21\u5f0f\u53d1\u9001<\/h4>\n\u5de5\u4e1a\u8bbe\u5907\u7ecf\u5e38\u9700\u8981\u53d1\u5341\u516d\u8fdb\u5236\u6307\u4ee4（\u5982 01 03 00 00 00 01），\u9700\u8981\u5148\u628ahex\u5b57\u7b26\u4e32\u8f6c\u6210\u5b57\u8282\u6570\u7ec4：<\/p>\n \/\/ hex\u5b57\u7b26\u4e32 "01 03 00 01" \u2192 byte[] {0x01, 0x03, 0x00, 0x01}
\nprivate byte[] StringToHexByte(string hexString)
\n{
\n string[] buffer = hexString.Split(' ');
\n byte[] result = new byte[buffer.Length];
\n for (int i = 0; i < buffer.Length; i++)
\n {
\n result[i] = Convert.ToByte(buffer[i], 16);
\n }
\n return result;
\n}<\/p>\n \/\/ \u5b57\u8282\u6570\u7ec4 \u2192 hex\u5b57\u7b26\u4e32（\u7528\u4e8e\u663e\u793a）
\nprivate string ByteToHexString(byte[] data)
\n{
\n string result = "";
\n foreach (var b in data)
\n result += b.ToString("X2") + " ";
\n return result.Trim();
\n} <\/p>\n \u5b8c\u6574\u7684\u53d1\u9001\u6309\u94ae\u903b\u8f91<\/h4>\n private void btnSend_Click(object sender, EventArgs e)
\n{
\n if (!_serialPort.IsOpen)
\n {
\n MessageBox.Show("\u8bf7\u5148\u8fde\u63a5\u4e32\u53e3！");
\n return;
\n }
\n if (string.IsNullOrEmpty(chatMsg.Text))
\n {
\n MessageBox.Show("\u8bf7\u8f93\u5165\u8981\u53d1\u9001\u7684\u5185\u5bb9");
\n return;
\n }<\/p>\n if (cbHexSend.Checked)
\n {
\n \/\/ \u5341\u516d\u8fdb\u5236\u53d1\u9001
\n byte[] data = StringToHexByte(chatMsg.Text.Trim());
\n _serialPort.Write(data, 0, data.Length);
\n }
\n else
\n {
\n \/\/ \u6587\u672c\u53d1\u9001
\n byte[] data = Encoding.UTF8.GetBytes(chatMsg.Text);
\n _serialPort.Write(data, 0, data.Length);
\n }
\n} <\/p>\n 10\u5b8c\u6574\u5b9e\u6218：\u4e00\u4e2a\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b<\/h3>\n\u628a\u524d\u9762\u7684\u77e5\u8bc6\u62fc\u8d77\u6765，\u5c31\u662f\u4e00\u4e2a\u529f\u80fd\u5b8c\u6574\u7684\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b\u3002\u672c\u9879\u76ee\u662f\u4e00\u4e2a C# WinForms \u5e94\u7528，\u5305\u542b\u4ee5\u4e0b\u529f\u80fd：<\/p>\n \n- \u2705 \u81ea\u52a8\u626b\u63cf\u53ef\u7528\u4e32\u53e3<\/li>\n
- \u2705 \u6ce2\u7279\u7387 \/ \u6570\u636e\u4f4d \/ \u505c\u6b62\u4f4d \/ \u6821\u9a8c\u4f4d \u53ef\u914d\u7f6e<\/li>\n
- \u2705 \u6253\u5f00 \/ \u5173\u95ed\u4e32\u53e3<\/li>\n
- \u2705 \u6587\u672c & \u5341\u516d\u8fdb\u5236 \u53cc\u6a21\u5f0f\u6536\u53d1<\/li>\n
- \u2705 \u5b9a\u65f6\u81ea\u52a8\u53d1\u9001<\/li>\n
- \u2705 \u5173\u952e\u8bcd\u667a\u80fd\u56de\u590d（Dictionary \u5339\u914d）<\/li>\n
- \u2705 \u9ed1\u5e95\u767d\u5b57 \/ \u767d\u5e95\u9ed1\u5b57 \u5207\u6362<\/li>\n<\/ul>\n
\u5173\u952e\u8bcd\u667a\u80fd\u56de\u590d\u793a\u4f8b<\/h4>\n\u6536\u5230"\u82f9\u679c"\u81ea\u52a8\u56de\u590d\u82f9\u679c\u7684\u4ecb\u7ecd，\u8fd9\u5728\u8bbe\u5907\u6307\u4ee4\u5e94\u7b54\u573a\u666f\u5f88\u5b9e\u7528：<\/p>\n Dictionary<string, string> _dic = new Dictionary<string, string>()
\n{
\n { "\u82f9\u679c", "\u82f9\u679c\u539f\u4ea7\u4e8e\u4e2d\u4e9a\u5929\u5c71\u5c71\u8109…" },
\n { "\u9999\u8549", "\u9999\u8549\u5bcc\u542b\u94be\u548c\u7ef4\u751f\u7d20…" },
\n { "\u6a58\u5b50", "\u6a58\u5b50\u5bcc\u542b\u7ef4\u751f\u7d20C…" }
\n};<\/p>\n \/\/ \u53d1\u9001\u65f6\u5339\u914d\u5173\u952e\u8bcd
\nstring input = chatMsg.Text;
\nif (_dic.ContainsKey(input))
\n{
\n richTextBox1.AppendText("\u4ecb\u7ecd:" + _dic[input]);
\n}
\nelse
\n{
\n richTextBox1.AppendText("\u672a\u5339\u914d\u5230\u5bf9\u5e94\u5173\u952e\u8bcd\\\\r\\\\n");
\n} <\/p>\n \u5b9a\u65f6\u81ea\u52a8\u53d1\u9001<\/h4>\n private void cbTime_CheckedChanged(object sender, EventArgs e)
\n{
\n if (cbTime.Checked)
\n {
\n timer1.Interval = Convert.ToInt32(numericUpDown1.Text);
\n timer1.Start();
\n }
\n else
\n {
\n timer1.Stop();
\n }
\n}<\/p>\n private void timer1_Tick(object sender, EventArgs e)
\n{
\n btnSend_Click(sender, e); \/\/ \u5b9a\u65f6\u89e6\u53d1\u53d1\u9001
\n} <\/p>\n \u9879\u76ee\u7ed3\u6784：\u89e3\u51b3\u65b9\u6848
\n Day07.sln \u2192 \u9879\u76ee
\n 1. \u4e32\u53e3\u8c03\u8bd5\u52a9\u624b \u2192 \u4e3b\u7a97\u4f53
\n Form1.cs\u3002\u57fa\u4e8e .NET Framework 4.7.2，\u7528 Visual Studio \u6253\u5f00\u5373\u53ef\u7f16\u8bd1\u8fd0\u884c\u3002<\/p>\n 🎯 \u5b66\u4e60\u8def\u7ebf\u603b\u7ed3<\/h4>\n\n\n\u9636\u6bb5\u4f60\u9700\u8981\u638c\u63e1<\/tr>\n \n| \u5165\u95e8<\/td>\n | \u4e32\u53e3\u539f\u7406\u3001DB9\u63a5\u53e3\u3001\u56db\u8981\u7d20\u914d\u7f6e<\/td>\n<\/tr>\n | \n| \u8fdb\u9636<\/td>\n | C# SerialPort \u7c7b\u3001\u6536\u53d1\u6570\u636e\u3001\u8de8\u7ebf\u7a0bUI<\/td>\n<\/tr>\n | \n| \u5b9e\u6218<\/td>\n | \u5341\u516d\u8fdb\u5236\u534f\u8bae\u89e3\u6790\u3001Modbus RTU\u3001\u591a\u8bbe\u5907\u603b\u7ebf<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n \u4e32\u53e3\u901a\u4fe1\u770b\u4f3c\u53e4\u8001，\u4f46\u5b83\u662f\u5de5\u4e1a\u81ea\u52a8\u5316\u7684\u57fa\u77f3\u3002\u638c\u63e1\u4e86\u5b83，\u4f60\u5c31\u80fd\u548c\u7edd\u5927\u591a\u6570\u5de5\u4e1a\u8bbe\u5907"\u5bf9\u8bdd"\u4e86\u3002\u52a8\u624b\u5199\u4e00\u4e2a\u81ea\u5df1\u7684\u4e32\u53e3\u8c03\u8bd5\u52a9\u624b，\u662f\u6700\u597d\u7684\u5b66\u4e60\u65b9\u5f0f！<\/p>\n","protected":false},"excerpt":{"rendered":" 📖 \u672c\u6587\u76ee\u5f55 \u4ec0\u4e48\u662f\u4e32\u53e3\u901a\u4fe1？\u4e32\u53e3\u957f\u4ec0\u4e48\u6837？DB9\u63a5\u53e3\u8be6\u89e3RS232 \/ RS422 \/ RS485 \u4e09\u5927\u6807\u51c6\u6570\u636e\u5e27\u683c\u5f0f：\u4e00\u5e27\u6570\u636e\u662f\u600e\u4e48\u4f20\u7684\u4e32\u53e3\u56db\u8981\u7d20：\u6ce2\u7279\u7387\u3001\u6570\u636e\u4f4d\u3001\u505c\u6b62\u4f4d\u3001\u6821\u9a8c\u4f4d\u52a8\u624b\u524d\u51c6\u5907：\u865a\u62df\u4e32\u53e3\u5de5\u5177C# \u7b2c\u4e00\u6b65：\u626b\u63cf\u5e76\u6253\u5f00\u4e32\u53e3\u63a5\u6536\u6570\u636e：DataReceived \u4e8b\u4ef6\u4e0e\u8de8\u7ebf\u7a0bUI\u53d1\u9001\u6570\u636e：\u6587\u672c\u6a21\u5f0f\u4e0e\u5341\u516d\u8fdb\u5236\u6a21\u5f0f\u5b8c\u6574\u5b9e\u6218：\u4e00\u4e2a\u4e32\u53e3\u8c03<\/p>\n","protected":false},"author":2,"featured_media":104101,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[11843,7701],"topic":[],"class_list":["post-104102","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-server","tag-winforms","tag-7701"],"yoast_head":"\n \u4e32\u53e3\u901a\u4fe1\u5165\u95e8\u5230\u5b9e\u6218\uff1a10\u6b65\u641e\u61c2\u5de5\u4e1a\u8bbe\u5907\u7684\u201c\u6084\u6084\u8bdd\u201c - 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