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data-v-c4656e6d></div><h2 class="text" data-v-c4656e6d>前言</h2><!----></div><div class="items" data-v-c4656e6d><!--[--><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>介绍</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/start.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>快速上手</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/edit.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>参与编辑</p><!--]--><!----></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-af16598e><section class="VPSidebarItem level-0" data-v-af16598e data-v-c4656e6d><div class="item" role="button" tabindex="0" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><h2 class="text" data-v-c4656e6d>vue3-template</h2><!----></div><div class="items" data-v-c4656e6d><!--[--><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/start.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>启动项目</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/base.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>vite.config.ts 基础配置</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/vite.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>vite插件集成</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/env.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>多环境变量</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/viewport.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>viewport 适配方案</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/ui.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>UI组件库</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/pinia.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>Pinia 状态管理</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/router.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>vue-router</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/axios.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>axios 封装及接口管理</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/alias.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>alias</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/proxy.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>proxy 跨域</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/i18n.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>多语言解决方案</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue3/lint.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>统一开发规范</p><!--]--><!----></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-af16598e><section class="VPSidebarItem level-0 collapsible has-active" data-v-af16598e data-v-c4656e6d><div class="item" role="button" tabindex="0" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><h2 class="text" data-v-c4656e6d>vue2-template</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-c4656e6d><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" viewbox="0 0 24 24" class="caret-icon" data-v-c4656e6d><path d="M9,19c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l5.3-5.3L8.3,6.7c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l6,6c0.4,0.4,0.4,1,0,1.4l-6,6C9.5,18.9,9.3,19,9,19z"></path></svg></div></div><div class="items" data-v-c4656e6d><!--[--><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/start.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>启动项目</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/env.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>多环境变量</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link is-active has-active" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/rem.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>rem 适配方案</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vw.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>vw 适配方案</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vant.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>VantUI 组件按需加载</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/sass.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>Sass 全局样式</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/vuex.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>Vuex 状态管理</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/router.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>Vue-router</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/axios.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>Axios 封装及接口管理</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/base.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>vue.config.js 基础配置</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/alias.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>配置 alias 别名</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/proxy.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>配置 proxy 跨域</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/bundle.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>配置 打包分析</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/externals.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>配置 externals 引入 cdn 资源</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/console.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>去掉 console.log</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/chunks.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>splitChunks 打包第三方模块</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/ie.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>添加 IE 兼容</p><!--]--><!----></a><!----></div><!----></div><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/vue2/lint.html" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>统一开发规范</p><!--]--><!----></a><!----></div><!----></div><!--]--></div></section></div><div class="group" data-v-af16598e><section class="VPSidebarItem level-0 collapsible collapsed" data-v-af16598e data-v-c4656e6d><div class="item" role="button" tabindex="0" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><h2 class="text" data-v-c4656e6d>其他</h2><div class="caret" role="button" aria-label="toggle section" tabindex="0" data-v-c4656e6d><svg xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" viewbox="0 0 24 24" class="caret-icon" data-v-c4656e6d><path d="M9,19c-0.3,0-0.5-0.1-0.7-0.3c-0.4-0.4-0.4-1,0-1.4l5.3-5.3L8.3,6.7c-0.4-0.4-0.4-1,0-1.4s1-0.4,1.4,0l6,6c0.4,0.4,0.4,1,0,1.4l-6,6C9.5,18.9,9.3,19,9,19z"></path></svg></div></div><div class="items" data-v-c4656e6d><!--[--><div class="VPSidebarItem level-1 is-link" data-v-c4656e6d data-v-c4656e6d><div class="item" data-v-c4656e6d><div class="indicator" data-v-c4656e6d></div><a class="VPLink link link" href="/vue-h5-template/guide/other/" data-v-c4656e6d data-v-8f4dc553><!--[--><p class="text" data-v-c4656e6d>常见问题</p><!--]--><!----></a><!----></div><!----></div><!--]--></div></section></div><!--]--><!--[--><!--]--></nav></aside><div class="VPContent has-sidebar" id="VPContent" data-v-b2cf3e0b data-v-a494bd1d><div class="VPDoc has-sidebar has-aside" data-v-a494bd1d data-v-c4b0d3cf><!--[--><!--]--><div class="container" data-v-c4b0d3cf><div class="aside" data-v-c4b0d3cf><div class="aside-curtain" data-v-c4b0d3cf></div><div class="aside-container" data-v-c4b0d3cf><div class="aside-content" data-v-c4b0d3cf><div class="VPDocAside" data-v-c4b0d3cf data-v-3f215769><!--[--><!--]--><!--[--><!--]--><div class="VPDocAsideOutline" data-v-3f215769 data-v-ff0f39c8><div class="content" data-v-ff0f39c8><div class="outline-marker" data-v-ff0f39c8></div><div class="outline-title" data-v-ff0f39c8>On this page</div><nav aria-labelledby="doc-outline-aria-label" data-v-ff0f39c8><span class="visually-hidden" id="doc-outline-aria-label" data-v-ff0f39c8> Table of Contents for current page </span><ul class="root" data-v-ff0f39c8 data-v-9a431c33><!--[--><!--]--></ul></nav></div></div><!--[--><!--]--><div class="spacer" data-v-3f215769></div><!--[--><!--]--><!----><!--[--><!--]--><!--[--><!--]--></div></div></div></div><div class="content" data-v-c4b0d3cf><div class="content-container" data-v-c4b0d3cf><!--[--><!--]--><!----><main class="main" data-v-c4b0d3cf><div style="position:relative;" class="vp-doc _vue-h5-template_guide_vue2_rem" data-v-c4b0d3cf><div><h1 id="rem-适配方案" tabindex="-1">rem 适配方案 <a class="header-anchor" href="#rem-适配方案" aria-label="Permalink to &quot;rem 适配方案&quot;"></a></h1><p>不用担心,项目已经配置好了 <code>rem</code> 适配, 下面仅做介绍:</p><p>Vant 中的样式默认使用<code>px</code>作为单位,如果需要使用<code>rem</code>单位,推荐使用以下两个工具:</p><ul><li><a href="https://github.com/cuth/postcss-pxtorem" target="_blank" rel="noreferrer">postcss-pxtorem</a> 是一款 <code>postcss</code> 插件,用于将单位转化为 <code>rem</code></li><li><a href="https://github.com/amfe/lib-flexible" target="_blank" rel="noreferrer">lib-flexible</a> 用于设置 <code>rem</code> 基准值</li></ul><h5 id="postcss-配置" tabindex="-1">PostCSS 配置 <a class="header-anchor" href="#postcss-配置" aria-label="Permalink to &quot;PostCSS 配置&quot;"></a></h5><p>下面提供了一份基本的 <code>postcss</code> 配置,可以在此配置的基础上根据项目需求进行修改</p><div class="language-javascript"><button title="Copy Code" class="copy"></button><span class="lang">javascript</span><pre class="shiki material-theme-palenight"><code><span class="line"><span style="color:#676E95;font-style:italic;">// https://github.com/michael-ciniawsky/postcss-load-config</span></span>
<span class="line"><span style="color:#89DDFF;">module.exports</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">=</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#F07178;">plugins</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#F07178;">autoprefixer</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#F07178;">overrideBrowserslist</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> [</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">Android 4.1</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">iOS 7.1</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">Chrome &gt; 31</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">ff &gt; 31</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">ie &gt;= 8</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> ]</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">},</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">&quot;</span><span style="color:#F07178;">postcss-pxtorem</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#F07178;">rootValue</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#F78C6C;">37.5</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#F07178;">propList</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> [</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">*</span><span style="color:#89DDFF;">&quot;</span><span style="color:#A6ACCD;">]</span><span style="color:#89DDFF;">,</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">},</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">},</span></span>
<span class="line"><span style="color:#89DDFF;">};</span></span></code></pre></div><p>更多详细信息: <a href="https://youzan.github.io/vant/#/zh-CN/quickstart#jin-jie-yong-fa" target="_blank" rel="noreferrer">vant</a></p><p><strong>新手必看,老鸟跳过</strong></p><p>很多小伙伴会问我,适配的问题,因为我们使用的是 Vant UI所以必须根据 Vant UI 375 的设计规范走,一般我们的设计会将 UI 图上传到蓝湖,我们就可以得到需要的尺寸了。下面就简单普及一下 rem 适配的原理。</p><p>我们知道 <code>1rem</code> 等于<code>html</code> 根元素设定的 <code>font-size</code><code>px</code> 值。Vant UI 设置 <code>rootValue: 37.5</code>,你可以看到在 iPhone 6 下看到 <code>1rem 等于 37.5px</code></p><div class="language-html"><button title="Copy Code" class="copy"></button><span class="lang">html</span><pre class="shiki material-theme-palenight"><code><span class="line"><span style="color:#89DDFF;">&lt;</span><span style="color:#F07178;">html</span><span style="color:#89DDFF;"> </span><span style="color:#C792EA;">data-dpr</span><span style="color:#89DDFF;">=</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">1</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;"> </span><span style="color:#C792EA;">style</span><span style="color:#89DDFF;">=</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">font-size: 37.5px;</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;">&gt;&lt;/</span><span style="color:#F07178;">html</span><span style="color:#89DDFF;">&gt;</span></span></code></pre></div><p>切换不同的机型,根元素可能会有不同的<code>font-size</code>。当你写 css px 样式时,会被程序换算成 <code>rem</code> 达到适配。</p><p>因为我们用了 Vant 的组件,需要按照 <code>rootValue: 37.5</code> 来写样式。</p><p>举个例子:设计给了你一张 750px * 1334px 图片,在 iPhone6 上铺满屏幕,其他机型适配。</p><ul><li><code>rootValue: 70</code> , 样式 <code>width: 750px;height: 1334px;</code> 图片会撑满 iPhone6 屏幕,这个时候切换其他机型,图片也会跟着撑满。</li><li><code>rootValue: 37.5</code> 的时候,样式 <code>width: 375px;height: 667px;</code> 图片会撑满 iPhone6 屏幕。</li></ul><p>也就是 iphone 6 下 375px 宽度写 CSS。其他的你就可以根据你设计图去写对应的样式就可以了。</p><p>当然,想要撑满屏幕你可以使用 100%,这里只是举例说明。</p><div class="language-html"><button title="Copy Code" class="copy"></button><span class="lang">html</span><pre class="shiki material-theme-palenight"><code><span class="line"><span style="color:#89DDFF;">&lt;</span><span style="color:#F07178;">img</span><span style="color:#89DDFF;"> </span><span style="color:#C792EA;">class</span><span style="color:#89DDFF;">=</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">image</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;"> </span><span style="color:#C792EA;">src</span><span style="color:#89DDFF;">=</span><span style="color:#89DDFF;">&quot;</span><span style="color:#C3E88D;">https://www.sunniejs.cn/static/weapp/logo.png</span><span style="color:#89DDFF;">&quot;</span><span style="color:#89DDFF;"> /&gt;</span></span>
<span class="line"></span>
<span class="line"><span style="color:#89DDFF;">&lt;</span><span style="color:#F07178;">style</span><span style="color:#89DDFF;">&gt;</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#676E95;font-style:italic;">/* rootValue: 75 */</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">.</span><span style="color:#FFCB6B;">image</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#B2CCD6;">width</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#F78C6C;">750px</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#B2CCD6;">height</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#F78C6C;">1334px</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#676E95;font-style:italic;">/* rootValue: 37.5 */</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">.</span><span style="color:#FFCB6B;">image</span><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">{</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#B2CCD6;">width</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#F78C6C;">375px</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#B2CCD6;">height</span><span style="color:#89DDFF;">:</span><span style="color:#A6ACCD;"> </span><span style="color:#F78C6C;">667px</span><span style="color:#89DDFF;">;</span></span>
<span class="line"><span style="color:#A6ACCD;"> </span><span style="color:#89DDFF;">}</span></span>
<span class="line"><span style="color:#89DDFF;">&lt;/</span><span style="color:#F07178;">style</span><span style="color:#89DDFF;">&gt;</span></span></code></pre></div></div></div></main><footer class="VPDocFooter" data-v-c4b0d3cf data-v-face870a><!--[--><!--]--><div class="edit-info" data-v-face870a><div class="edit-link" data-v-face870a><a class="VPLink link edit-link-button" href="https://github.com/sunniejs/vue-h5-template/blob/docs/docs/guide/vue2/rem.md" target="_blank" rel="noreferrer" data-v-face870a data-v-8f4dc553><!--[--><svg xmlns="http://www.w3.org/2000/svg" viewbox="0 0 24 24" class="edit-link-icon" aria-label="edit icon" data-v-face870a><path d="M18,23H4c-1.7,0-3-1.3-3-3V6c0-1.7,1.3-3,3-3h7c0.6,0,1,0.4,1,1s-0.4,1-1,1H4C3.4,5,3,5.4,3,6v14c0,0.6,0.4,1,1,1h14c0.6,0,1-0.4,1-1v-7c0-0.6,0.4-1,1-1s1,0.4,1,1v7C21,21.7,19.7,23,18,23z"></path><path d="M8,17c-0.3,0-0.5-0.1-0.7-0.3C7,16.5,6.9,16.1,7,15.8l1-4c0-0.2,0.1-0.3,0.3-0.5l9.5-9.5c1.2-1.2,3.2-1.2,4.4,0c1.2,1.2,1.2,3.2,0,4.4l-9.5,9.5c-0.1,0.1-0.3,0.2-0.5,0.3l-4,1C8.2,17,8.1,17,8,17zM9.9,12.5l-0.5,2.1l2.1-0.5l9.3-9.3c0.4-0.4,0.4-1.1,0-1.6c-0.4-0.4-1.2-0.4-1.6,0l0,0L9.9,12.5z M18.5,2.5L18.5,2.5L18.5,2.5z"></path></svg> 在GitHub编辑此页<!--]--><!----></a></div><div class="last-updated" data-v-face870a><p class="VPLastUpdated" data-v-face870a data-v-7b3ebfe1>Last updated: <time datetime="2024-11-11T09:04:24.000Z" data-v-7b3ebfe1></time></p></div></div><div class="prev-next" data-v-face870a><div class="pager" data-v-face870a><a class="pager-link prev" href="/vue-h5-template/guide/vue2/env.html" data-v-face870a><span class="desc" data-v-face870a>Previous page</span><span class="title" data-v-face870a>多环境变量</span></a></div><div class="has-prev pager" data-v-face870a><a class="pager-link next" href="/vue-h5-template/guide/vue2/vw.html" data-v-face870a><span class="desc" data-v-face870a>Next page</span><span class="title" data-v-face870a>vw 适配方案</span></a></div></div></footer><!--[--><!--]--></div></div></div><!--[--><!--]--></div></div><footer class="VPFooter has-sidebar" data-v-b2cf3e0b data-v-2f86ebd2><div class="container" data-v-2f86ebd2><p class="message" data-v-2f86ebd2>Released under the MIT License.</p><p class="copyright" data-v-2f86ebd2>Copyright © 2022-present Fonghehe</p></div></footer><!--[--><!--]--></div></div>
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