auto

.gitignore

@@ -22,3 +22,8 @@ dist-ssr
 *.njsproj
 *.sln
 *.sw?
+
+# C 编译器运行服务 - 编译器二进制文件
+server/bin/
+server/*.ps1
+tmp/

package.json

@@ -5,12 +5,16 @@
   "type": "module",
   "scripts": {
     "dev": "vite",
+    "server": "node server/server.cjs",
+    "start": "node server/server.js & vite",
     "build": "vite build",
     "preview": "vite preview",
     "test": "vitest run",
     "test:watch": "vitest"
   },
   "dependencies": {
+    "cors": "^2.8.6",
+    "express": "^5.2.1",
     "vue": "^3.5.34",
     "vue-router": "^4.6.4"
   },

server/server.cjs

@@ -0,0 +1,219 @@
+/**
+ * C 代码编译运行后端服务
+ * 接收 C 代码 → 编译 → 运行 → 返回输出
+ */
+const express = require('express')
+const cors = require('cors')
+const { execSync } = require('child_process')
+const path = require('path')
+const fs = require('fs')
+
+const app = express()
+const PORT = 3001
+
+app.use(cors())
+app.use(express.json({ limit: '1mb' }))
+
+// 查找可用的 C 编译器
+// w64devkit GCC 路径
+const W64DEVKIT_DIR = path.join(__dirname, 'bin', 'w64devkit', 'w64devkit')
+const W64DEVKIT_GCC = path.join(W64DEVKIT_DIR, 'bin', 'gcc.exe')
+const W64DEVKIT_PREFIX = path.join(W64DEVKIT_DIR, 'lib', 'gcc')
+
+function findCompiler() {
+  const candidates = [
+    // MinGW / MSYS2 (PATH)
+    'gcc.exe',
+    'x86_64-w64-mingw32-gcc.exe',
+    'i686-w64-mingw32-gcc.exe',
+    // TCC (Tiny C Compiler)
+    'tcc.exe',
+    // Clang
+    'clang.exe',
+    // MSVC
+    'cl.exe',
+    // 本项目的便携编译器
+    path.join(__dirname, 'bin', 'tcc.exe'),
+    path.join(__dirname, 'bin', 'gcc.exe'),
+    path.join(__dirname, '..', 'tools', 'tcc', 'tcc.exe'),
+  ]
+
+  // 先在 PATH 中查找
+  for (const name of ['gcc.exe', 'tcc.exe', 'clang.exe', 'cl.exe']) {
+    try {
+      execSync(`where ${name}`, { stdio: 'pipe', timeout: 3000 })
+      return { path: name, name }
+    } catch {}
+  }
+
+  // 检查 w64devkit GCC（需设置 GCC_EXEC_PREFIX）
+  if (fs.existsSync(W64DEVKIT_GCC)) {
+    return { path: W64DEVKIT_GCC, name: 'gcc.exe', execPrefix: W64DEVKIT_PREFIX }
+  }
+
+  // 再检查其他具体路径
+  for (const candidate of candidates) {
+    try {
+      const absPath = path.resolve(candidate)
+      if (fs.existsSync(absPath)) {
+        return { path: absPath, name: path.basename(absPath) }
+      }
+    } catch {}
+  }
+
+  // 搜索 Visual Studio MSVC 安装目录
+  try {
+    const vsPaths = [
+      'C:\\Program Files\\Microsoft Visual Studio\\2022\\Community\\VC\\Tools\\MSVC',
+      'C:\\Program Files\\Microsoft Visual Studio\\2022\\Professional\\VC\\Tools\\MSVC',
+      'C:\\Program Files\\Microsoft Visual Studio\\2022\\Enterprise\\VC\\Tools\\MSVC',
+      'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\Community\\VC\\Tools\\MSVC',
+      'C:\\Program Files (x86)\\Microsoft Visual Studio\\2019\\BuildTools\\VC\\Tools\\MSVC',
+    ]
+    for (const vsPath of vsPaths) {
+      if (fs.existsSync(vsPath)) {
+        const versions = fs.readdirSync(vsPath).sort().reverse()
+        for (const ver of versions) {
+          const clPath = path.join(vsPath, ver, 'bin', 'Hostx64', 'x64', 'cl.exe')
+          if (fs.existsSync(clPath)) {
+            return { path: clPath, name: 'cl.exe' }
+          }
+        }
+      }
+    }
+  } catch {}
+
+  return null
+}
+
+// 编译并运行 C 代码
+app.post('/api/run-c', (req, res) => {
+  const { code } = req.body
+  if (!code) {
+    return res.status(400).json({ error: '请提供 C 代码' })
+  }
+
+  const compiler = findCompiler()
+  if (!compiler) {
+    return res.status(400).json({
+      error: '未找到 C 编译器',
+      hint: '请安装 MinGW-w64 GCC 编译器',
+      installGuide: [
+        '--- 安装 MinGW-w64 ---',
+        '方法一（推荐）：下载 MinGW-w64 GCC',
+        '  1. 访问 https://winlibs.com/ 下载 GCC (MinGW-w64)',
+        '  2. 解压并将 bin/ 目录添加到系统 PATH 环境变量',
+        '  3. 重启终端后即可使用',
+        '',
+        '方法二（轻量）：下载 TCC (Tiny C Compiler)',
+        '  将 tcc.exe 放入 server/bin/ 目录',
+        '',
+        '安装后重新启动: npm run server',
+      ].join('\n')
+    })
+  }
+
+  const tmpDir = path.join(__dirname, '..', 'tmp')
+  if (!fs.existsSync(tmpDir)) {
+    fs.mkdirSync(tmpDir, { recursive: true })
+  }
+
+  const srcFile = path.join(tmpDir, `code_${Date.now()}.c`)
+  const outFile = path.join(tmpDir, `code_${Date.now()}.exe`)
+
+  try {
+    // 写入源码
+    fs.writeFileSync(srcFile, code, 'utf-8')
+
+    let compileCmd
+    const execOptions = {
+      timeout: 15000,
+      cwd: tmpDir,
+      encoding: 'utf-8',
+      env: { ...process.env }
+    }
+
+    if (compiler.name.includes('tcc')) {
+      // TCC: 编译并运行一步到位（支持 -run）
+      compileCmd = `"${compiler.path}" -run "${srcFile}"`
+    } else if (compiler.execPrefix) {
+      // w64devkit GCC: 需要设置 GCC_EXEC_PREFIX 并加入 PATH
+      const w64binDir = path.dirname(compiler.path)
+      execOptions.env.GCC_EXEC_PREFIX = compiler.execPrefix + path.sep
+      execOptions.env.PATH = w64binDir + path.delimiter + (execOptions.env.PATH || '')
+      compileCmd = `"${compiler.path}" "${srcFile}" -o "${outFile}" -Wall -std=c99`
+    } else {
+      // GCC/Clang: 先编译再运行
+      compileCmd = `"${compiler.path}" "${srcFile}" -o "${outFile}" -Wall -std=c99 2>&1`
+    }
+
+    // 编译
+    const compileOutput = execSync(compileCmd, execOptions)
+
+    let runOutput = compileOutput
+
+    // GCC/Clang: 编译后还需运行 exe
+    if (!compiler.name.includes('tcc') && fs.existsSync(outFile)) {
+      try {
+        runOutput = execSync(`"${outFile}"`, {
+          timeout: 10000,
+          cwd: tmpDir,
+          encoding: 'utf-8',
+          env: execOptions.env
+        })
+      } catch (runErr) {
+        runOutput = runErr.stdout || runErr.message
+      }
+    }
+
+    // 清理临时文件
+    try {
+      if (fs.existsSync(srcFile)) fs.unlinkSync(srcFile)
+      if (fs.existsSync(outFile)) fs.unlinkSync(outFile)
+    } catch {}
+
+    res.json({ output: runOutput })
+  } catch (compileErr) {
+    // 编译错误
+    res.json({
+      output: compileErr.stdout || compileErr.message,
+      isError: true
+    })
+  } finally {
+    // 确保清理
+    try {
+      if (fs.existsSync(srcFile)) fs.unlinkSync(srcFile)
+      if (fs.existsSync(outFile)) fs.unlinkSync(outFile)
+    } catch {}
+  }
+})
+
+// 健康检查
+app.get('/api/status', (req, res) => {
+  const compiler = findCompiler()
+  res.json({
+    status: 'ok',
+    compiler: compiler ? `${compiler.name} (${compiler.path})` : '未安装'
+  })
+})
+
+// 下载 TCC 脚本
+app.get('/api/setup-compiler', (req, res) => {
+  res.json({
+    message: '请手动下载 TCC:',
+    url: 'https://raw.githubusercontent.com/FooBarWidget/tinycc/master/tcc.exe',
+    instructions: `将 tcc.exe 放入 ${path.join(__dirname, 'bin')} 目录`
+  })
+})
+
+app.listen(PORT, () => {
+  console.log(`✅ C 代码运行服务已启动: http://localhost:${PORT}`)
+  const compiler = findCompiler()
+  if (compiler) {
+    console.log(`   检测到编译器: ${compiler.name}`)
+  } else {
+    console.log(`   ⚠️  未检测到 C 编译器，请安装后使用`)
+    console.log(`   下载 TCC: https://raw.githubusercontent.com/FooBarWidget/tinycc/master/tcc.exe`)
+    console.log(`   放置路径: ${path.join(__dirname, 'bin', 'tcc.exe')}`)
+  }
+})

src/__tests__/codeUtils.test.js

@@ -0,0 +1,89 @@
+import { describe, it, expect } from 'vitest'
+import { highlightC } from '../utils/codeUtils.js'
+
+describe('highlightC', () => {
+  it('should highlight keywords', () => {
+    const result = highlightC('int main()')
+    expect(result).toContain('<span class="hl-keyword">int</span>')
+    expect(result).toContain('<span class="hl-keyword">main</span>')
+  })
+
+  it('should highlight single-line comments', () => {
+    const result = highlightC('// this is a comment')
+    expect(result).toContain('<span class="hl-comment">')
+    expect(result).toContain('// this is a comment')
+  })
+
+  it('should highlight multi-line comments', () => {
+    const result = highlightC('/* multi\nline */')
+    expect(result).toContain('<span class="hl-comment">')
+    expect(result).toContain('/* multi')
+    expect(result).toContain('line */')
+  })
+
+  it('should highlight string literals', () => {
+    const result = highlightC('printf("hello world");')
+    expect(result).toContain('<span class="hl-string">')
+    expect(result).toContain('"hello world"')
+  })
+
+  it('should highlight char literals', () => {
+    const result = highlightC("char c = 'A';")
+    expect(result).toContain("<span class=\"hl-string\">'A'</span>")
+  })
+
+  it('should highlight numbers', () => {
+    const result = highlightC('int x = 42;')
+    expect(result).toContain('<span class="hl-number">42</span>')
+  })
+
+  it('should highlight float numbers', () => {
+    const result = highlightC('float f = 3.14;')
+    expect(result).toContain('<span class="hl-number">3.14</span>')
+  })
+
+  it('should highlight preprocessor directives', () => {
+    const result = highlightC('#include <stdio.h>')
+    expect(result).toContain('<span class="hl-preprocessor">')
+    expect(result).toContain('#include &lt;stdio.h&gt;')
+  })
+
+  it('should NOT produce nested broken HTML tags', () => {
+    const result = highlightC('#include <stdio.h>\nint main() {\n  printf("hello");\n}')
+    // Should not contain any raw '<span' as visible text (it should be inside proper tags)
+    expect(result).not.toContain('&lt;span')
+    // Should not contain unescaped "<span" inside text content
+    const stripped = result.replace(/<[^>]+>/g, '')
+    expect(stripped).not.toContain('hl-keyword')
+    expect(stripped).not.toContain('hl-comment')
+    expect(stripped).not.toContain('hl-string')
+    expect(stripped).not.toContain('hl-number')
+  })
+
+  it('should escape HTML in code content', () => {
+    const result = highlightC('int x = a < b && b > c;')
+    expect(result).toContain('&lt;')
+    expect(result).toContain('&gt;')
+    expect(result).not.toContain(' < ')
+    expect(result).not.toContain(' > ')
+  })
+
+  it('should handle empty string', () => {
+    expect(highlightC('')).toBe('')
+  })
+
+  it('should handle code with mixed content', () => {
+    const code = `#include <stdio.h>
+// main function
+int main() {
+  printf("Hello, World!\\n");
+  return 0;
+}`
+    const result = highlightC(code)
+    expect(result).toContain('hl-preprocessor')
+    expect(result).toContain('hl-comment')
+    expect(result).toContain('hl-keyword')
+    expect(result).toContain('hl-string')
+    expect(result).toContain('hl-number')
+  })
+})

src/components/CodeViewer.vue

@@ -1,5 +1,5 @@
 <template>
-  <div class="code-viewer">
+  <div class="code-viewer" ref="viewerRef" :class="{ fullscreen: isFullscreen }">
     <div class="code-toolbar">
       <div class="file-info">
         <span class="file-icon">📄</span>
@@ -8,13 +8,38 @@
       </div>
       <div class="toolbar-actions">
         <span v-if="description" class="file-desc-tip" :title="description">ℹ️</span>
-        <button class="copy-btn" @click="copyCode" :title="copied ? '已复制!' : '复制代码'">
+
+        <!-- 字号控制 -->
+        <div class="font-size-control">
+          <button class="tool-btn" @click="fontSizeDown" title="缩小字体">A−</button>
+          <span class="font-size-value">{{ fontSize }}px</span>
+          <button class="tool-btn" @click="fontSizeUp" title="放大字体">A+</button>
+          <button class="tool-btn reset-btn" @click="fontSizeReset" title="重置字号">↺</button>
+        </div>
+
+        <!-- 全屏 -->
+        <button class="tool-btn" @click="toggleFullscreen" :title="isFullscreen ? '退出全屏' : '全屏'">
+          {{ isFullscreen ? '⛶' : '⛶' }}
+        </button>
+
+        <!-- 运行 -->
+        <button
+          class="tool-btn run-btn"
+          @click="runCode"
+          :disabled="running"
+          :title="running ? '正在编译运行...' : '编译并运行 C 代码'"
+        >
+          {{ running ? '⏳' : '▶' }} 运行
+        </button>
+
+        <!-- 复制 -->
+        <button class="tool-btn" @click="copyCode" :title="copied ? '已复制!' : '复制代码'">
           {{ copied ? '✅' : '📋' }}
         </button>
       </div>
     </div>
-    <div class="code-content" ref="codeRef">
+    <div class="code-content" ref="codeRef" @wheel="onWheel">
-      <pre><code v-html="highlightedCode"></code></pre>
+      <pre :style="{ fontSize: fontSize + 'px', lineHeight: lineHeight + 'px' }"><code v-html="highlightedCode"></code></pre>
       <div v-if="loading" class="loading-overlay">
         <div class="loading-spinner">加载中...</div>
       </div>
@@ -22,6 +47,20 @@
         <p>⚠️ {{ error }}</p>
       </div>
     </div>
+
+    <!-- 运行输出面板 -->
+    <div v-if="runOutput !== null" class="run-output" :class="{ collapsed: outputCollapsed }">
+      <div class="output-header" @click="outputCollapsed = !outputCollapsed">
+        <span class="output-title">
+          {{ runOutput.isError ? '❌' : '✅' }} 运行结果
+        </span>
+        <span class="output-toggle">{{ outputCollapsed ? '展开' : '折叠' }}</span>
+        <button class="tool-btn close-btn" @click.stop="runOutput = null" title="关闭">✕</button>
+      </div>
+      <div class="output-body">
+        <pre :class="{ 'error-text': runOutput.isError }">{{ runOutput.text }}</pre>
+      </div>
+    </div>
   </div>
 </template>
 
@@ -40,12 +79,22 @@ const codeContent = ref('')
 const loading = ref(false)
 const error = ref('')
 const copied = ref(false)
+const fontSize = ref(13)
+const isFullscreen = ref(false)
+const viewerRef = ref(null)
+const codeRef = ref(null)
+
+const MIN_FONT = 10
+const MAX_FONT = 36
+const FONT_STEP = 2
 
 const highlightedCode = computed(() => {
   if (!codeContent.value) return ''
   return highlightC(codeContent.value)
 })
 
+const lineHeight = computed(() => Math.max(22, fontSize.value * 1.5))
+
 async function loadCode() {
   if (!props.filePath) return
   loading.value = true
@@ -62,13 +111,90 @@ async function loadCode() {
 
 watch(() => props.filePath, loadCode, { immediate: true })
 
+// 字号控制
+function fontSizeUp() {
+  fontSize.value = Math.min(fontSize.value + FONT_STEP, MAX_FONT)
+}
+function fontSizeDown() {
+  fontSize.value = Math.max(fontSize.value - FONT_STEP, MIN_FONT)
+}
+function fontSizeReset() {
+  fontSize.value = 13
+}
+
+// Ctrl+滚轮缩放
+function onWheel(e) {
+  if (e.ctrlKey || e.metaKey) {
+    e.preventDefault()
+    if (e.deltaY < 0) fontSizeUp()
+    else fontSizeDown()
+  }
+}
+
+// 全屏
+async function toggleFullscreen() {
+  if (!viewerRef.value) return
+  if (isFullscreen.value) {
+    try {
+      await document.exitFullscreen()
+    } catch {}
+    isFullscreen.value = false
+  } else {
+    try {
+      await viewerRef.value.requestFullscreen()
+      isFullscreen.value = true
+    } catch {}
+  }
+}
+
+function onFullscreenChange() {
+  isFullscreen.value = !!document.fullscreenElement
+}
+
+// 监听全屏变化
+if (typeof document !== 'undefined') {
+  document.addEventListener('fullscreenchange', onFullscreenChange)
+}
+
+const running = ref(false)
+const runOutput = ref(null) // { text: string, isError: boolean }
+const outputCollapsed = ref(false)
+
+async function runCode() {
+  if (!codeContent.value) return
+  running.value = true
+  runOutput.value = null
+  outputCollapsed.value = false
+
+  try {
+    const res = await fetch('/api/run-c', {
+      method: 'POST',
+      headers: { 'Content-Type': 'application/json' },
+      body: JSON.stringify({ code: codeContent.value })
+    })
+    const data = await res.json()
+    runOutput.value = {
+      text: data.error || data.hint
+        ? `⚠️ ${data.error || '未知错误'}\n${data.hint || ''}\n${data.installGuide || ''}`
+        : data.output,
+      isError: data.isError || !!data.error
+    }
+  } catch (e) {
+    runOutput.value = {
+      text: `❌ 无法连接到运行服务\n请确认后端服务已启动 (npm run server)`,
+      isError: true
+    }
+  } finally {
+    running.value = false
+  }
+}
+
 async function copyCode() {
   try {
     await navigator.clipboard.writeText(codeContent.value)
     copied.value = true
     setTimeout(() => { copied.value = false }, 2000)
   } catch {
-    // fallback
     const textarea = document.createElement('textarea')
     textarea.value = codeContent.value
     document.body.appendChild(textarea)
@@ -127,7 +253,7 @@ async function copyCode() {
 .toolbar-actions {
   display: flex;
   align-items: center;
-  gap: 8px;
+  gap: 6px;
 }
 
 .file-desc-tip {
@@ -135,36 +261,176 @@ async function copyCode() {
   font-size: 16px;
 }
 
-.copy-btn {
+/* 字型控制 */
+.font-size-control {
+  display: flex;
+  align-items: center;
+  gap: 4px;
+  padding: 0 6px;
+  border-right: 1px solid var(--border-color);
+  border-left: 1px solid var(--border-color);
+  margin: 0 4px;
+}
+
+.font-size-value {
+  font-size: 11px;
+  font-family: var(--mono);
+  color: var(--text-tertiary);
+  min-width: 28px;
+  text-align: center;
+}
+
+/* 通用工具栏按钮 */
+.tool-btn {
   background: var(--hover-bg);
   border: 1px solid var(--border-color);
-  padding: 4px 10px;
+  padding: 4px 8px;
   border-radius: 6px;
   cursor: pointer;
-  font-size: 14px;
+  font-size: 13px;
-  transition: all 0.2s;
+  transition: all 0.15s;
+  line-height: 1;
+  color: var(--text-secondary);
+  white-space: nowrap;
 }
 
-.copy-btn:hover {
+.tool-btn:hover {
   background: var(--active-bg);
+  color: var(--text-primary);
+  border-color: var(--primary-color);
 }
 
+.reset-btn {
+  font-size: 14px;
+  padding: 4px 6px;
+}
+
+/* 代码内容区域 */
 .code-content {
   position: relative;
-  overflow-x: auto;
+  overflow: auto;
 }
 
 .code-content pre {
-  padding: 16px;
+  padding: 16px 20px;
   margin: 0;
   font-family: 'Fira Code', 'JetBrains Mono', 'Consolas', monospace;
   font-size: 13px;
-  line-height: 1.6;
+  line-height: 22px;
   color: var(--code-text);
+  text-align: left;
+  white-space: pre;
+  tab-size: 4;
 }
 
 .code-content code {
   font-family: inherit;
+  font-size: inherit;
+}
+
+/* 全屏模式 */
+.code-viewer.fullscreen {
+  position: fixed;
+  inset: 0;
+  z-index: 9999;
+  border-radius: 0;
+  background: var(--code-bg);
+  display: flex;
+  flex-direction: column;
+}
+
+.code-viewer.fullscreen .code-content {
+  flex: 1;
+  overflow: auto;
+}
+
+.code-viewer.fullscreen .code-content pre {
+  min-height: 100%;
+}
+
+/* 运行按钮 */
+.run-btn {
+  background: #22c55e;
+  color: white;
+  border-color: #22c55e;
+  font-weight: 600;
+  padding: 4px 12px;
+}
+
+.run-btn:hover:not(:disabled) {
+  background: #16a34a;
+  border-color: #16a34a;
+  color: white;
+}
+
+.run-btn:disabled {
+  opacity: 0.6;
+  cursor: wait;
+}
+
+/* 运行输出面板 */
+.run-output {
+  border-top: 1px solid var(--border-color);
+  background: #1a1a2e;
+  transition: all 0.2s;
+}
+
+.run-output.collapsed .output-body {
+  display: none;
+}
+
+.output-header {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  padding: 8px 16px;
+  cursor: pointer;
+  user-select: none;
+  background: rgba(255,255,255,0.03);
+}
+
+.output-title {
+  flex: 1;
+  font-size: 13px;
+  font-weight: 600;
+  color: #e2e8f0;
+}
+
+.output-toggle {
+  font-size: 11px;
+  color: #94a3b8;
+}
+
+.close-btn {
+  background: transparent;
+  border: none;
+  color: #94a3b8;
+  padding: 2px 6px;
+  font-size: 14px;
+}
+.close-btn:hover {
+  color: #ef4444;
+  background: transparent;
+}
+
+.output-body {
+  max-height: 300px;
+  overflow: auto;
+}
+
+.output-body pre {
+  margin: 0;
+  padding: 12px 16px;
+  font-family: 'Fira Code', 'Consolas', monospace;
+  font-size: 13px;
+  line-height: 1.5;
+  color: #e2e8f0;
+  white-space: pre-wrap;
+  word-break: break-all;
+}
+
+.output-body pre.error-text {
+  color: #fca5a5;
 }
 
 .loading-overlay,

src/utils/codeUtils.js

@@ -16,40 +16,149 @@ export async function loadCodeFile(path) {
 }
 
 /**
- * C语言关键字高亮
+ * C语言关键字高亮（基于 Token 的稳健实现）
+ * 逐字符解析，避免正则误匹配已插入的 HTML 标签
  */
 export function highlightC(code) {
-  const keywords = [
+  const keywords = new Set([
     'auto', 'break', 'case', 'char', 'const', 'continue', 'default', 'do',
     'double', 'else', 'enum', 'extern', 'float', 'for', 'goto', 'if',
     'int', 'long', 'register', 'return', 'short', 'signed', 'sizeof', 'static',
     'struct', 'switch', 'typedef', 'union', 'unsigned', 'void', 'volatile', 'while',
     'include', 'define', 'ifdef', 'ifndef', 'endif', 'main', 'printf', 'scanf'
-  ]
+  ])
 
-  // 先转义 HTML
+  let result = ''
-  let escaped = code
+  let i = 0
+  const len = code.length
+
+  while (i < len) {
+    // 预处理指令（行首 #）
+    if (code[i] === '#' && (i === 0 || code[i - 1] === '\n')) {
+      let end = i + 1
+      while (end < len && code[end] !== '\n') end++
+      const line = code.slice(i, end)
+      result += '<span class="hl-preprocessor">' + escapeHtml(line) + '</span>'
+      i = end
+      continue
+    }
+
+    // 单行注释 //
+    if (code[i] === '/' && i + 1 < len && code[i + 1] === '/') {
+      let end = i + 2
+      while (end < len && code[end] !== '\n') end++
+      result += '<span class="hl-comment">' + escapeHtml(code.slice(i, end)) + '</span>'
+      i = end
+      continue
+    }
+
+    // 多行注释 /* */
+    if (code[i] === '/' && i + 1 < len && code[i + 1] === '*') {
+      let end = i + 2
+      while (end + 1 < len && !(code[end] === '*' && code[end + 1] === '/')) end++
+      if (end + 1 < len) end += 2
+      result += '<span class="hl-comment">' + escapeHtml(code.slice(i, end)) + '</span>'
+      i = end
+      continue
+    }
+
+    // 双引号字符串 "..."
+    if (code[i] === '"') {
+      let end = i + 1
+      while (end < len && code[end] !== '"') {
+        if (code[end] === '\\') end++ // 跳过转义字符
+        end++
+      }
+      if (end < len) end++ // 包含结束引号
+      result += '<span class="hl-string">' + escapeHtml(code.slice(i, end)) + '</span>'
+      i = end
+      continue
+    }
+
+    // 单引号字符 '...'
+    if (code[i] === "'") {
+      let end = i + 1
+      while (end < len && code[end] !== "'") {
+        if (code[end] === '\\') end++
+        end++
+      }
+      if (end < len) end++
+      result += '<span class="hl-string">' + escapeHtml(code.slice(i, end)) + '</span>'
+      i = end
+      continue
+    }
+
+    // 数字（整数/浮点数）
+    if (isDigit(code[i]) || (code[i] === '.' && i + 1 < len && isDigit(code[i + 1]))) {
+      let start = i
+      if (code[i] === '0' && i + 1 < len && (code[i + 1] === 'x' || code[i + 1] === 'X')) {
+        // 十六进制
+        i += 2
+        while (i < len && isHexDigit(code[i])) i++
+      } else {
+        while (i < len && isDigit(code[i])) i++
+        if (i < len && code[i] === '.') {
+          i++
+          while (i < len && isDigit(code[i])) i++
+        }
+        if (i < len && (code[i] === 'e' || code[i] === 'E')) {
+          i++
+          if (i < len && (code[i] === '+' || code[i] === '-')) i++
+          while (i < len && isDigit(code[i])) i++
+        }
+      }
+      // 确保不是标识符的一部分
+      if (i < len && isWordChar(code[i])) {
+        // 回退，按普通文本处理
+        i = start
+        result += escapeHtml(code[i])
+        i++
+      } else {
+        result += '<span class="hl-number">' + escapeHtml(code.slice(start, i)) + '</span>'
+      }
+      continue
+    }
+
+    // 标识符/关键字
+    if (isWordStart(code[i])) {
+      let start = i
+      while (i < len && isWordChar(code[i])) i++
+      const word = code.slice(start, i)
+      if (keywords.has(word)) {
+        result += '<span class="hl-keyword">' + escapeHtml(word) + '</span>'
+      } else {
+        result += escapeHtml(word)
+      }
+      continue
+    }
+
+    // 其他字符
+    result += escapeHtml(code[i])
+    i++
+  }
+
+  return result
+}
+
+function escapeHtml(str) {
+  return str
     .replace(/&/g, '&amp;')
     .replace(/</g, '&lt;')
     .replace(/>/g, '&gt;')
-
+}
-  // 关键字高亮
+
-  const keywordPattern = new RegExp(`\\b(${keywords.join('|')})\\b`, 'g')
+function isDigit(c) {
-  escaped = escaped.replace(keywordPattern, '<span class="hl-keyword">$1</span>')
+  return c >= '0' && c <= '9'
-
+}
-  // 注释高亮 (// 和 /* */)
+
-  escaped = escaped.replace(/(\/\/.*)/g, '<span class="hl-comment">$1</span>')
+function isHexDigit(c) {
-  escaped = escaped.replace(/(\/\*[\s\S]*?\*\/)/g, '<span class="hl-comment">$1</span>')
+  return isDigit(c) || (c >= 'a' && c <= 'f') || (c >= 'A' && c <= 'F')
-
+}
-  // 字符串高亮
+
-  escaped = escaped.replace(/"([^"\\]*(\\.[^"\\]*)*)"/g, '<span class="hl-string">"$1"</span>')
+function isWordStart(c) {
-  escaped = escaped.replace(/'([^'\\]*(\\.[^'\\]*)*)'/g, '<span class="hl-string">\'$1\'</span>')
+  return (c >= 'a' && c <= 'z') || (c >= 'A' && c <= 'Z') || c === '_'
-
+}
-  // 数字高亮
+
-  escaped = escaped.replace(/\b(\d+\.?\d*)\b/g, '<span class="hl-number">$1</span>')
+function isWordChar(c) {
-
+  return isWordStart(c) || isDigit(c)
-  // 预处理指令高亮
-  escaped = escaped.replace(/(^#\s*\w+.*)/gm, '<span class="hl-preprocessor">$1</span>')
-
-  return escaped
 }

vite.config.js

@@ -4,6 +4,14 @@ import vue from '@vitejs/plugin-vue'
 // https://vite.dev/config/
 export default defineConfig({
   plugins: [vue()],
+  server: {
+    proxy: {
+      '/api': {
+        target: 'http://localhost:3001',
+        changeOrigin: true,
+      },
+    },
+  },
   test: {
     environment: 'jsdom',
     globals: true,