forked from zhongyidian/super_video
feat: 更新 Vite 配置,优化资源管理和背景图像处理
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# 图片路径构建后访问解决方案
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## 问题描述
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在Vue 3 + Vite + TypeScript项目中,图片资源在开发环境正常显示,但构建后无法正常访问。主要问题包括:
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1. CSS中的相对路径 `url('../../assets/images/xxx.png')` 在构建后无法正确解析
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2. 动态生成的图片路径无法被Vite静态分析,导致图片未被包含在构建中
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3. 环境变量判断逻辑不正确
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## 解决方案
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### 1. 使用 `import.meta.glob` 静态导入所有图片
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```typescript
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// src/utils/index.ts
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const imageModules = import.meta.glob('../assets/images/**/*.{png,jpg,jpeg,gif,svg,webp}', {
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eager: true
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})
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export const getStaticImage = (path: string) => {
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try {
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const imagePath =
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path.endsWith('.png') ||
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path.endsWith('.jpg') ||
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path.endsWith('.jpeg') ||
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path.endsWith('.gif') ||
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path.endsWith('.svg') ||
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path.endsWith('.webp')
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? `../assets/images/${path}`
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: `../assets/images/${path}.png`
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const module = imageModules[imagePath]
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if (module && typeof module === 'object' && 'default' in module) {
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return module.default as string
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}
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return new URL(imagePath, import.meta.url).href
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} catch (error) {
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console.error('Failed to load image:', path, error)
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return ''
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}
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}
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```
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### 2. 修复CSS中的图片路径
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**之前(错误):**
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```css
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.guide-panel {
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background-image: url('../../assets/images/components/box.png');
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}
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```
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**之后(正确):**
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```vue
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<template>
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<div class="guide-panel" :style="{ backgroundImage: getBackgroundImage('components/box') }">
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</template>
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<script setup>
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import { getBackgroundImage } from '@/utils'
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</script>
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```
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### 3. 优化Vite构建配置
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```typescript
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// vite.config.ts
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export default defineConfig(({ mode }) => {
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return {
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// ... 其他配置
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build: {
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assetsDir: 'assets',
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rollupOptions: {
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output: {
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assetFileNames: assetInfo => {
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if (/\.(png|jpe?g|gif|svg|webp)$/i.test(assetInfo.name || '')) {
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return `assets/images/[name]-[hash][extname]`
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}
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return `assets/[name]-[hash][extname]`
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}
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}
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}
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}
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}
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})
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```
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## 关键改进点
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### 1. 静态分析支持
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- 使用 `import.meta.glob` 确保Vite能够静态分析所有图片资源
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- 所有图片在构建时被正确包含和处理
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### 2. 路径统一管理
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- 通过 `getStaticImage` 函数统一管理图片路径
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- 支持带扩展名和不带扩展名的路径
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- 提供错误处理和回退机制
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### 3. 构建优化
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- 图片资源统一放置在 `assets/images/` 目录
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- 文件名包含hash值,支持缓存优化
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- 构建后路径结构清晰
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## 使用方式
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### 在组件中使用图片
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```vue
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<template>
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<!-- 方式1:直接使用 -->
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<img :src="getStaticImage('components/person')" alt="人物" />
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<!-- 方式2:作为背景图片 -->
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<div :style="{ backgroundImage: getBackgroundImage('home/bg') }"></div>
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<!-- 方式3:通过ImgButton组件 -->
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<ImgButton :image="IMAGE_PATHS.BUTTONS.CONTINUE" />
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</template>
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<script setup>
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import { getStaticImage, getBackgroundImage, IMAGE_PATHS } from '@/utils'
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</script>
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```
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### 预定义图片路径常量
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```typescript
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export const IMAGE_PATHS = {
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HOME_BG: 'home/guide/bg',
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ACTION_BG: 'home/action/bg',
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GUIDE_PERSON: 'components/person',
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BUTTONS: {
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CONTINUE: 'components/continue',
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ESCAPE: 'components/escape'
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}
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} as const
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```
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## 验证结果
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构建后验证:
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- ✅ 所有图片资源正确包含在 `dist/assets/images/` 目录
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- ✅ 图片路径在构建后正确解析
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- ✅ 预览服务器中图片正常访问
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- ✅ 支持hash文件名,便于缓存管理
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## 注意事项
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1. **不要将图片放在 `public` 目录**:这会导致图片不被编译和优化
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2. **使用统一的图片管理函数**:避免直接使用相对路径
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3. **确保图片文件存在**:构建时会检查所有引用的图片
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4. **支持多种图片格式**:png, jpg, jpeg, gif, svg, webp
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## 相关文件
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- 图片处理工具:`src/utils/index.ts`
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- Vite配置:`vite.config.ts`
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- 组件示例:`src/components/Guide/GuideDragon.vue`
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- 按钮组件:`src/components/Button/ImgButton.vue`
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@@ -8,7 +8,7 @@
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<!-- 导学小龙UI区域 -->
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<div class="guide-ui absolute left-16 top-1/2 transform -translate-y-1/2">
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<!-- 主UI面板 -->
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<div class="guide-panel">
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<div class="guide-panel" :style="{ backgroundImage: getBackgroundImage('components/box') }">
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<!-- 标题区域 -->
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<ImgButton
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@@ -60,7 +60,7 @@
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</template>
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<script setup lang="ts">
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import { getStaticImage, IMAGE_PATHS } from '@/utils'
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import { getStaticImage, getBackgroundImage, IMAGE_PATHS } from '@/utils'
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import { ImgButton } from '@/components/Button'
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interface Props {
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@@ -119,7 +119,6 @@ const handleContinue = () => {
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width: 1547px;
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height: 279px;
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padding: 75px 30px 30px 120px;
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background-image: url('../../assets/images/components/box.png');
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background-color: rgba(0, 0, 0, 0); /* 背景完全透明 */
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}
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+2
-2
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import { createRouter, createWebHistory } from 'vue-router'
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import { createRouter, createWebHashHistory } from 'vue-router'
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import type { RouteRecordRaw } from 'vue-router'
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const routes: RouteRecordRaw[] = [
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@@ -29,7 +29,7 @@ const routes: RouteRecordRaw[] = [
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]
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const router = createRouter({
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history: createWebHistory(),
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history: createWebHashHistory(),
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routes
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})
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+13
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//访问静态图片
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// 图片资源映射 - 使用静态导入确保构建时包含所有图片
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const imageModules = import.meta.glob('../assets/images/**/*.{png,jpg,jpeg,gif,svg,webp}', {
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eager: true
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})
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//访问静态图片 - 使用静态导入确保构建后路径正确
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export const getStaticImage = (path: string) => {
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try {
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// 确保路径以正确的格式结尾
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@@ -12,6 +17,13 @@ export const getStaticImage = (path: string) => {
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? `../assets/images/${path}`
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: `../assets/images/${path}.png`
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// 使用静态导入的模块
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const module = imageModules[imagePath]
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if (module && typeof module === 'object' && 'default' in module) {
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return module.default as string
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}
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// 回退到URL方式
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return new URL(imagePath, import.meta.url).href
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} catch (error) {
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console.error('Failed to load image:', path, error)
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@@ -63,18 +63,18 @@ onMounted(() => {
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<div class="w-full h-full relative">
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<!-- 背景图片 -->
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<div
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:class="['absolute inset-0 bg-cover bg-center bg-no-repeat', status ? 'z-0' : 'z-10']"
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:class="['absolute inset-0 bg-cover bg-center bg-no-repeat']"
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:style="{ backgroundImage: getBackgroundImage(IMAGE_PATHS.ACTION_BG) }"
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></div>
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<!-- 选择模块 -->
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<div class="absolute left-0 top-[-140px] inset-0 z-10">
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<div :class="['absolute left-0 top-[-140px] inset-0 z-[8]']">
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<ModuleSwitcher v-model="selectedModule" @change="handleModuleChange" />
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</div>
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<!-- 电视机 -->
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<div
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class="absolute w-[765px] h-[768px] right-0 top-0 z-0 transition-opacity duration-200"
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class="absolute w-[765px] h-[768px] right-0 top-0 z-[5] transition-opacity duration-200"
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:class="{ 'opacity-50': isImageLoading }"
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:style="{ backgroundImage: selectedImage }"
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></div>
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@@ -21,7 +21,7 @@ import { ImgButton } from '@/components/Button'
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</div>
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<!-- 操作指引 -->
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<div class="absolute right-0 bottom-0">
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<ImgButton :image="IMAGE_PATHS.BUTTONS.OPERATE_GUIDE" :path="{ name: 'Guide' }" />
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<ImgButton :image="IMAGE_PATHS.BUTTONS.OPERATE_GUIDE" />
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</div>
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</div>
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</template>
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+14
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const env = loadEnv(mode, root, '')
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return {
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plugins: [vue()],
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base: env.VITE_BASE_PATH || '/',
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base: env.VITE_NODE_ENV === 'development' ? '/' : './',
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resolve: {
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alias: {
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'@': resolve(__dirname, 'src')
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}
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},
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build: {
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assetsDir: 'assets',
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rollupOptions: {
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output: {
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assetFileNames: assetInfo => {
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if (/\.(png|jpe?g|gif|svg|webp)$/i.test(assetInfo.name || '')) {
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return `assets/images/[name]-[hash][extname]`
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}
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return `assets/[name]-[hash][extname]`
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}
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}
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}
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}
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}
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})
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