串口下拉框去掉电脑自带的 COM1，只留实训台上的 COM2–COM5；展开时每个串口后面用灰字标出接的设备（ADAM-4017+、ADAM-4150、ZigBee 协调器、LED 屏），选中后的值还是 COM2 这样的串口名，和真机一致。项目 5 任务 3 跳过 COM1 的写法照书保留，任务说明补一句；使用说明、设计方案同步；按位置选串口的测试下标跟着改

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

server/test/classroom.ts

@@ -214,7 +214,7 @@ try {
       async (s) => {
         const window = s.window!
         window.action('com_lamp', { action: 'dropDown' })
-        window.action('com_lamp', { action: 'select', index: 3 })
+        window.action('com_lamp', { action: 'select', index: 2 })
         window.action('btn_open', { action: 'click' })
         await Bun.sleep(300)
         // 设备消息由服务器记进实训台状态，再以 board 消息推给浏览器

server/test/load.ts

@@ -80,7 +80,7 @@ const latencies = await Promise.all(
     const form = instance.form!
     const id = (name: string) => findId(form, name)!
     send(instance, { type: 'action', id: id('com_Port'), action: 'dropDown' })
-    send(instance, { type: 'action', id: id('com_Port'), action: 'select', index: 4 })
+    send(instance, { type: 'action', id: id('com_Port'), action: 'select', index: 3 })
     send(instance, { type: 'action', id: id('btn_Open'), action: 'click' })
     send(instance, { type: 'action', id: id('txt_SendText'), action: 'text', value: '压力测试' })
     await Bun.sleep(200)

server/test/runner.test.ts

@@ -196,7 +196,7 @@ test('项目2 任务2：温度读数来自实训台，滑块变化后再次获
   const { runner, id } = await startSample('p2-t2-模拟量采集')
   const port = id('com_port')
   // 串口列表在 Load 里就已填好
-  runner.send({ type: 'action', id: port, action: 'select', index: 1 })
+  runner.send({ type: 'action', id: port, action: 'select', index: 0 })
   runner.send({ type: 'action', id: id('btn_Open'), action: 'click' })
   const textOf = (name: string) =>
     runner
@@ -224,7 +224,7 @@ test('项目3 任务1：单选按钮切换，事件顺序与 WinForms 一致，
   await runner.waitFor('patch', (m) => m.changes.some((c) => c.id === lamp && c.prop === 'IsOn' && c.value === true))
   expect(runner.messages.some((m) => m.type === 'device')).toBe(false)
 
-  runner.send({ type: 'action', id: id('com_port'), action: 'select', index: 3 })
+  runner.send({ type: 'action', id: id('com_port'), action: 'select', index: 2 })
   runner.send({ type: 'action', id: id('btn_open'), action: 'click' })
 
   // 选"关"：先触发"开"的 CheckedChanged（又开一次），再触发"关"的 CheckedChanged，最终关灯
@@ -241,8 +241,8 @@ test('项目3 任务1：单选按钮切换，事件顺序与 WinForms 一致，
 
 test('项目3 任务2：勾选人体开关后，有人经过时 5 秒内路灯打开', async () => {
   const { runner, id } = await startSample('p3-t2-人体红外ZigBee联动')
-  runner.send({ type: 'action', id: id('com_lamp'), action: 'select', index: 3 })
-  runner.send({ type: 'action', id: id('com_environment'), action: 'select', index: 2 })
+  runner.send({ type: 'action', id: id('com_lamp'), action: 'select', index: 2 })
+  runner.send({ type: 'action', id: id('com_environment'), action: 'select', index: 1 })
   runner.send({ type: 'action', id: id('btn_open'), action: 'click' })
 
   // 复选框的 Click 里读取 Checked：此时 Checked 必须已经是 true
@@ -316,7 +316,7 @@ test('项目1 任务2：计算器（装箱拆箱）和多态', async () => {
 
 /** 选 COM3、点"开启"，等定时器读到实训台上的传感器 */
 async function openAdam4150(runner: Runner, id: (name: string) => string) {
-  runner.send({ type: 'action', id: id('com_port'), action: 'select', index: 2 })
+  runner.send({ type: 'action', id: id('com_port'), action: 'select', index: 1 })
   runner.send({ type: 'action', id: id('btn_open'), action: 'click' })
 }