项目 5 补齐：旧版线程 API（Suspend / Resume / Abort）与 ListBox

- 编译时把 Thread 的 Suspend / Resume / Abort、ThreadState、Sleep、new Thread 改写成平台的协作式实现：被挂起或终止的线程在 Sleep、后台改控件、调设备类库、弹提示框时停下或结束； ThreadStateException 等行为与 .NET Framework 一致；编辑器不再提示"已过时" - ListBox：列表项、单选、SelectedIndexChanged 先于 Click、删除选中项后取消选中； ComboBox 与 ListBox 共用 ListControl 和列表项集合；设计器工具箱加"列表框" - 评分规则的"包含"对列表框检查所有列表项 - 示例：项目 5 任务 2（烟雾，线程）、任务 3（推送灾情，二维数组、两个窗体、ListBox），参考答案修正书上直接 Abort 挂起线程、烟雾记成"发现火情"的问题 - 一直不换行的 Console 输出攒满 4096 字符先发出，避免占满内存 - 测试：旧版线程 API、ListBox 事件顺序、两个示例的端到端和评分测试 Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-10-22 20:33:12 +08:00
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commit 91b39603a2
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+namespace 烟雾
+{
+    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.lbl_port = new System.Windows.Forms.Label();
+            this.com_port = new System.Windows.Forms.ComboBox();
+            this.btn_open = new System.Windows.Forms.Button();
+            this.groupBox1 = new System.Windows.Forms.GroupBox();
+            this.txt_even = new System.Windows.Forms.TextBox();
+            this.lbl_even = new System.Windows.Forms.Label();
+            this.txt_time = new System.Windows.Forms.TextBox();
+            this.lbl_time = new System.Windows.Forms.Label();
+            this.groupBox1.SuspendLayout();
+            this.SuspendLayout();
+            // 
+            // lbl_port
+            // 
+            this.lbl_port.AutoSize = true;
+            this.lbl_port.Location = new System.Drawing.Point(53, 21);
+            this.lbl_port.Name = "lbl_port";
+            this.lbl_port.Size = new System.Drawing.Size(29, 12);
+            this.lbl_port.TabIndex = 0;
+            this.lbl_port.Text = "串口";
+            // 
+            // com_port
+            // 
+            this.com_port.FormattingEnabled = true;
+            this.com_port.Location = new System.Drawing.Point(100, 18);
+            this.com_port.Name = "com_port";
+            this.com_port.Size = new System.Drawing.Size(121, 20);
+            this.com_port.TabIndex = 1;
+            // 
+            // btn_open
+            // 
+            this.btn_open.Location = new System.Drawing.Point(227, 16);
+            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);
+            // 
+            // groupBox1
+            // 
+            this.groupBox1.Controls.Add(this.txt_even);
+            this.groupBox1.Controls.Add(this.lbl_even);
+            this.groupBox1.Controls.Add(this.txt_time);
+            this.groupBox1.Controls.Add(this.lbl_time);
+            this.groupBox1.Location = new System.Drawing.Point(30, 63);
+            this.groupBox1.Name = "groupBox1";
+            this.groupBox1.Size = new System.Drawing.Size(286, 110);
+            this.groupBox1.TabIndex = 3;
+            this.groupBox1.TabStop = false;
+            this.groupBox1.Text = "数据显示";
+            // 
+            // txt_even
+            // 
+            this.txt_even.Location = new System.Drawing.Point(70, 70);
+            this.txt_even.Name = "txt_even";
+            this.txt_even.Size = new System.Drawing.Size(133, 21);
+            this.txt_even.TabIndex = 3;
+            // 
+            // lbl_even
+            // 
+            this.lbl_even.AutoSize = true;
+            this.lbl_even.Location = new System.Drawing.Point(23, 73);
+            this.lbl_even.Name = "lbl_even";
+            this.lbl_even.Size = new System.Drawing.Size(29, 12);
+            this.lbl_even.TabIndex = 2;
+            this.lbl_even.Text = "事件";
+            // 
+            // txt_time
+            // 
+            this.txt_time.Location = new System.Drawing.Point(70, 34);
+            this.txt_time.Name = "txt_time";
+            this.txt_time.Size = new System.Drawing.Size(133, 21);
+            this.txt_time.TabIndex = 1;
+            // 
+            // lbl_time
+            // 
+            this.lbl_time.AutoSize = true;
+            this.lbl_time.Location = new System.Drawing.Point(23, 37);
+            this.lbl_time.Name = "lbl_time";
+            this.lbl_time.Size = new System.Drawing.Size(29, 12);
+            this.lbl_time.TabIndex = 0;
+            this.lbl_time.Text = "时间";
+            // 
+            // Form1
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 12F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(342, 193);
+            this.Controls.Add(this.groupBox1);
+            this.Controls.Add(this.btn_open);
+            this.Controls.Add(this.com_port);
+            this.Controls.Add(this.lbl_port);
+            this.Name = "Form1";
+            this.Text = "烟雾";
+            this.FormClosing += new System.Windows.Forms.FormClosingEventHandler(this.Form1_FormClosing);
+            this.Load += new System.EventHandler(this.Form1_Load);
+            this.groupBox1.ResumeLayout(false);
+            this.groupBox1.PerformLayout();
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private System.Windows.Forms.Label lbl_port;
+        private System.Windows.Forms.ComboBox com_port;
+        private System.Windows.Forms.Button btn_open;
+        private System.Windows.Forms.GroupBox groupBox1;
+        private System.Windows.Forms.TextBox txt_even;
+        private System.Windows.Forms.Label lbl_even;
+        private System.Windows.Forms.TextBox txt_time;
+        private System.Windows.Forms.Label lbl_time;
+    }
+}
+
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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;
+using System.Threading;//引用线程命名空间
+
+namespace 烟雾
+{
+    public partial class Form1 : Form
+    {
+        public Form1()
+        {
+            InitializeComponent();
+        }
+
+        bool IsOpen = false;
+        bool IsFirst = true;//记录线程是否第一次打开
+        Thread thd;//定义Thread线程
+
+        private void Form1_Load(object sender, EventArgs e)
+        {
+            //用 foreach 循环把所有可用的串口号加入列表
+            foreach (string item in SerialPort.GetPortNames())
+            {
+                com_port.Items.Add(item);
+            }
+            thd = new Thread(GetData);//实例化线程，绑定线程运行方法
+            Control.CheckForIllegalCrossThreadCalls = false;//允许跨线程调用
+        }
+
+        private void GetData()
+        {
+            //线程运行方法，不断循环运行
+            while (true)
+            {
+                if (DeviceCtrlHelper.adam4150Helper.SetData().smokeValue)//判断烟雾状态，true为发现烟雾灾情，false为正常状态
+                {
+                    txt_time.Text = DateTime.Now.ToString();
+                    txt_even.Text = "发现烟情";
+                }
+                else
+                {
+                    txt_time.Text = DateTime.Now.ToString();
+                    txt_even.Text = "正常";
+                }
+                Thread.Sleep(2000);//线程休眠2s
+            }
+        }
+
+        private void btn_open_Click(object sender, EventArgs e)
+        {
+            IsOpen = !IsOpen;
+            if (IsOpen)
+            {
+                DeviceCtrlHelper.adam4150Helper.Open(com_port.Text);
+                btn_open.Text = "关闭";
+                if (IsFirst)
+                {
+                    IsFirst = false;
+                    thd.Start();//第一次打开时启动线程
+                }
+                else
+                {
+                    thd.Resume();//继续已挂起的线程
+                }
+            }
+            else
+            {
+                DeviceCtrlHelper.adam4150Helper.Close();
+                btn_open.Text = "开启";
+                thd.Suspend();//挂起线程
+            }
+        }
+
+        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
+        {
+            //挂起的线程不能直接终止，要先让它继续
+            if (thd.ThreadState == ThreadState.Suspended)
+            {
+                thd.Resume();
+            }
+            thd.Abort();//终止线程
+        }
+    }
+}
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+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace 烟雾
+{
+    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());
+        }
+    }
+}
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+# 评分规则：书上评价表的功能项。每项单独启动一次程序，按步骤操作，核对结果。
+# 格式说明见 server/src/grading/checks.ts
+- title: 按钮能打开串口、开启线程，更改按钮文字
+  steps:
+    - select: { control: com_port, item: COM3 }
+    - click: btn_open
+    - expect: { control: btn_open, text: 关闭, desc: 按钮文字变成"关闭" }
+    - expect: { control: txt_time, matches: '\d{1,2}:\d{2}', within: 5s, desc: 显示当前时间 }
+
+- title: 能利用线程实时显示烟雾传感器数据
+  steps:
+    - select: { control: com_port, item: COM3 }
+    - click: btn_open
+    - board: { smoke: true }
+    - expect: { control: txt_even, contains: 发现烟情, within: 5s }
+    - board: { smoke: false }
+    - expect: { control: txt_even, contains: 正常, within: 5s }
+
+- title: 再点按钮能关闭串口、挂起线程，再次打开时线程继续
+  steps:
+    - select: { control: com_port, item: COM3 }
+    - click: btn_open
+    - expect: { control: txt_time, matches: '\d{1,2}:\d{2}', within: 5s, desc: 显示当前时间 }
+    - click: btn_open
+    - expect: { control: btn_open, text: 开启, desc: 按钮文字变回"开启" }
+    - expect: { control: txt_time, unchanged: 5s, desc: 不再更新时间（线程应已挂起） }
+    - click: btn_open
+    - expect: { control: btn_open, text: 关闭, desc: 按钮文字变成"关闭" }
+    - board: { smoke: true }
+    - expect: { control: txt_even, contains: 发现烟情, within: 5s, desc: 继续显示烟雾数据（线程应已继续） }
@@ -0,0 +1,4 @@
+{
+  "title": "项目5 任务2 采集烟雾传感器数据",
+  "source": "教材书 p98–101，界面取自配套参考工程，控件名按书上表格修改；关闭窗体时先让挂起的线程继续再终止（书上直接 Abort 挂起的线程会出错）"
+}