整理教材示例：项目 1 任务 2、项目 4 任务 1 和 3、项目 5 任务 1

- 界面取自配套参考工程，用设计器引擎按书上表格改控件名（label1 → lbl_port 等），
  去掉 BOM、换行统一为 LF；代码按书整理，修正 boolIsOpen 等印刷错误
- 测试：所有示例都能编译（10 个），以及计算器 / 多态、红外对射、报警灯、火焰的行为测试

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

samples/p4-t3-报警灯/Form1.Designer.cs

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+namespace 报警灯
+{
+    partial class Form1
+    {
+        /// <summary>
+        /// 必需的设计器变量。
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// 清理所有正在使用的资源。
+        /// </summary>
+        /// <param name="disposing">如果应释放托管资源，为 true；否则为 false。</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows 窗体设计器生成的代码
+
+        /// <summary>
+        /// 设计器支持所需的方法 - 不要
+        /// 使用代码编辑器修改此方法的内容。
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.alarm1 = new WinFormsDeviceControlLibrary.Alarm();
+            this.btn_alarmOpen = new System.Windows.Forms.Button();
+            this.btn_alarmClose = new System.Windows.Forms.Button();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.btn_open = new System.Windows.Forms.Button();
+            this.com_port = new System.Windows.Forms.ComboBox();
+            this.label1 = new System.Windows.Forms.Label();
+            this.groupBox1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // alarm1
+            // 
+            this.alarm1.BackColor = System.Drawing.Color.White;
+            this.alarm1.Location = new System.Drawing.Point(12, 12);
+            this.alarm1.Name = "alarm1";
+            this.alarm1.Size = new System.Drawing.Size(150, 150);
+            this.alarm1.TabIndex = 0;
+            // 
+            // btn_alarmOpen
+            // 
+            this.btn_alarmOpen.Location = new System.Drawing.Point(12, 192);
+            this.btn_alarmOpen.Name = "btn_alarmOpen";
+            this.btn_alarmOpen.Size = new System.Drawing.Size(35, 23);
+            this.btn_alarmOpen.TabIndex = 1;
+            this.btn_alarmOpen.Text = "开";
+            this.btn_alarmOpen.UseVisualStyleBackColor = true;
+            this.btn_alarmOpen.Click += new System.EventHandler(this.btn_alarmOpen_Click);
+            // 
+            // btn_alarmClose
+            // 
+            this.btn_alarmClose.Location = new System.Drawing.Point(127, 192);
+            this.btn_alarmClose.Name = "btn_alarmClose";
+            this.btn_alarmClose.Size = new System.Drawing.Size(35, 23);
+            this.btn_alarmClose.TabIndex = 2;
+            this.btn_alarmClose.Text = "关";
+            this.btn_alarmClose.UseVisualStyleBackColor = true;
+            this.btn_alarmClose.Click += new System.EventHandler(this.btn_alarmClose_Click);
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.btn_open);
+            this.groupBox1.Controls.Add(this.com_port);
+            this.groupBox1.Controls.Add(this.label1);
+            this.groupBox1.Location = new System.Drawing.Point(195, 58);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(218, 114);
+            this.groupBox1.TabIndex = 3;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "配置";
+            // 
+            // btn_open
+            // 
+            this.btn_open.Location = new System.Drawing.Point(113, 71);
+            this.btn_open.Name = "btn_open";
+            this.btn_open.Size = new System.Drawing.Size(75, 23);
+            this.btn_open.TabIndex = 2;
+            this.btn_open.Text = "开启";
+            this.btn_open.UseVisualStyleBackColor = true;
+            this.btn_open.Click += new System.EventHandler(this.btn_open_Click);
+            // 
+            // com_port
+            // 
+            this.com_port.FormattingEnabled = true;
+            this.com_port.Location = new System.Drawing.Point(67, 33);
+            this.com_port.Name = "com_port";
+            this.com_port.Size = new System.Drawing.Size(121, 20);
+            this.com_port.TabIndex = 1;
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(20, 36);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(41, 12);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "报警灯";
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.BackColor = System.Drawing.Color.White;
+            this.ClientSize = new System.Drawing.Size(425, 262);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.btn_alarmClose);
+            this.Controls.Add(this.btn_alarmOpen);
+            this.Controls.Add(this.alarm1);
+            this.Name = "Form1";
+            this.Text = "报警灯";
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private WinFormsDeviceControlLibrary.Alarm alarm1;
+        private System.Windows.Forms.Button btn_alarmOpen;
+        private System.Windows.Forms.Button btn_alarmClose;
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.Button btn_open;
+        private System.Windows.Forms.ComboBox com_port;
+        private System.Windows.Forms.Label label1;
+    }
+}
+

samples/p4-t3-报警灯/Form1.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+using System.IO.Ports;
+using DeviceCtrlLibrary;
+
+namespace 报警灯
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        bool IsOpen = false;
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            com_port.Items.Clear();
+            foreach (string item in SerialPort.GetPortNames())
+            {
+                com_port.Items.Add(item);
+            }
+        }
+
+        private void AlarmOnOff(string Device, bool IsOpen)
+        {
+            //利用switch语句打开或关闭继电器模块
+            switch (Device)
+            {
+                case "Alarm":
+                    DeviceCtrlHelper.adam4150Helper.OnOff(0, IsOpen);//报警灯接入DO0
+                    alarm1.OnOff(IsOpen);//更改界面报警灯状态
+                    break;
+                case "LED1": DeviceCtrlHelper.adam4150Helper.OnOff(1, IsOpen); break;//开启或关闭继电器1模块
+                case "LED2": DeviceCtrlHelper.adam4150Helper.OnOff(2, IsOpen); break;//开启或关闭继电器2模块
+                default: MessageBox.Show("没有合适的接口程序！", "错误提示！"); break;//若为其他模块，则提示错误
+            }
+        }
+
+        private void btn_open_Click(object sender, EventArgs e)
+        {
+            IsOpen = !IsOpen;
+            if (IsOpen)
+            {
+                DeviceCtrlHelper.adam4150Helper.Open(com_port.Text);
+                btn_open.Text = "关闭";
+            }
+            else
+            {
+                DeviceCtrlHelper.adam4150Helper.Close();
+                btn_open.Text = "开启";
+            }
+        }
+
+        private void btn_alarmOpen_Click(object sender, EventArgs e)
+        {
+            AlarmOnOff("Alarm", true);
+        }
+
+        private void btn_alarmClose_Click(object sender, EventArgs e)
+        {
+            AlarmOnOff("Alarm", false);
+        }
+    }
+}

samples/p4-t3-报警灯/Program.cs

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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace 报警灯
+{
+    static class Program
+    {
+        /// <summary>
+        /// 应用程序的主入口点。
+        /// </summary>
+        [STAThread]
+        static void Main()
+        {
+            Application.EnableVisualStyles();
+            Application.SetCompatibleTextRenderingDefault(false);
+            Application.Run(new Form1());
+        }
+    }
+}

samples/p4-t3-报警灯/meta.json

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+{
+  "title": "项目4 任务3 控制报警灯",
+  "source": "教材书 p84–87，界面取自配套参考工程；修正书上 boolIsOpen 少空格"
+}