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feat(web-basics): enhance demo components with improved UI and functionality

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- Update WebTechTriad component with clearer labels and better visual hierarchy
- Improve Flexbox demo with axis visualization and more comprehensive controls
- Enhance BoxModel demo with box-sizing toggle and real-world scenario
- Refactor DomManipulator with expanded operations and code examples
- Add consistent styling and responsive design across all components
This commit is contained in:
sanbuphy
2026-02-14 22:48:56 +08:00
parent d35211071a
commit d7d79114a6
5 changed files with 1658 additions and 903 deletions
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docs/.vitepress/theme/components/appendix/web-basics/WebTechTriad.vue
+127 -66
View File
@@ -1,9 +1,8 @@
<template>
<div class="triad">
<div class="demo-header">
<span class="icon">🎭</span>
<span class="title">三剑客协作</span>
<span class="subtitle">同一段页面，切换看 HTML/CSS/JS 各自的作用</span>
<span class="title">HTML / CSS / JavaScript 协作演示</span>
<span class="subtitle">同一段页面，切换查看三者各自的作用</span>
</div>
<div class="main-area">
@@ -15,6 +14,7 @@
:class="['mode-btn', { active: current === m.id }]"
@click="current = m.id"
>
<span class="mode-icon">{{ m.icon }}</span>
{{ m.label }}
</button>
</div>
@@ -43,7 +43,7 @@
</div>
<div class="explain-section">
<div class="explain-label">发生了什么</div>
<div class="explain-label">执行过程</div>
<ol class="steps">
<li v-for="s in steps" :key="s">{{ s }}</li>
</ol>
@@ -52,8 +52,7 @@
</div>
<div class="info-box">
<span class="icon">💡</span>
<strong>核心思想：</strong>HTML 是骨架，CSS 是皮肤，JS 是大脑。三者分工明确，缺一不可。
<strong>分工原则：</strong>HTML 定义结构（是什么），CSS 定义样式（长什么样），JavaScript 定义行为（能做什么）。
</div>
</div>
</template>
@@ -62,9 +61,9 @@
import { computed, ref } from 'vue'
const modes = [
{ id: 'html', label: 'HTML' },
{ id: 'css', label: 'CSS' },
{ id: 'js', label: 'JS' }
{ id: 'html', label: 'HTML', icon: '结构' },
{ id: 'css', label: 'CSS', icon: '样式' },
{ id: 'js', label: 'JavaScript', icon: '行为' }
]
const current = ref('html')
@@ -72,9 +71,9 @@ const clicks = ref(0)
const selectedPart = ref('h1')
const codeTitle = computed(() => {
if (current.value === 'html') return 'HTML：定义结构'
if (current.value === 'css') return 'CSS：定义样式'
return 'JS：定义行为'
if (current.value === 'html') return 'HTML 代码'
if (current.value === 'css') return 'CSS 代码'
return 'JavaScript 代码'
})
const codeLines = computed(() => {
@@ -87,12 +86,15 @@ const codeLines = computed(() => {
}
if (current.value === 'css') {
return [
{ key: 'h1', text: '.hero { color: #0ea5e9; font-size: 20px; }' },
{ key: 'p', text: '.desc { color: #666; }' },
{ key: 'btn', text: '.cta { background: #0ea5e9; color: #fff; }' }
{ key: 'h1', text: '.hero {' },
{ key: 'h1', text: ' color: #0ea5e9;' },
{ key: 'h1', text: ' font-size: 20px;' },
{ key: 'h1', text: '}' },
{ key: 'btn', text: '.cta { background: #0ea5e9; }' }
]
}
return [
{ key: 'btn', text: "const btn = document.querySelector('.cta')" },
{ key: 'btn', text: "btn.addEventListener('click', () => {" },
{ key: 'btn', text: ' count++' },
{ key: 'btn', text: " btn.textContent = '点我 (' + count + ')'" },
@@ -102,12 +104,24 @@ const codeLines = computed(() => {
const steps = computed(() => {
if (current.value === 'html') {
return ['浏览器读取标签，知道"这是标题、这是按钮"', '按默认样式显示（所以看起来朴素）']
return [
'浏览器解析标签，识别内容类型',
'h1 是标题，p 是段落，button 是按钮',
'按默认样式渲染（此时看起来很朴素）'
]
}
if (current.value === 'css') {
return ['读取选择器，找到对应元素', '应用颜色、字号、间距等样式']
return [
'解析选择器，找到对应元素',
'应用颜色、字号、间距等样式规则',
'页面外观发生变化'
]
}
return ['给按钮绑定点击事件', '点击时更新计数和文字']
return [
'通过选择器获取按钮元素',
'注册 click 事件监听器',
'点击时执行回调函数，更新计数'
]
})
const handleBtnClick = () => {
@@ -119,28 +133,35 @@ const handleBtnClick = () => {
<style scoped>
.triad {
border: 1px solid var(--vp-c-divider);
border-radius: 6px;
border-radius: 8px;
background: var(--vp-c-bg-soft);
padding: 0.75rem;
margin: 0.5rem 0;
padding: 1rem;
margin: 1rem 0;
}
.demo-header {
display: flex;
align-items: center;
gap: 0.5rem;
margin-bottom: 0.75rem;
flex-direction: column;
gap: 0.25rem;
margin-bottom: 1rem;
}
.demo-header .icon { font-size: 1.25rem; }
.demo-header .title { font-weight: bold; font-size: 1rem; }
.demo-header .subtitle { color: var(--vp-c-text-2); font-size: 0.85rem; margin-left: 0.5rem; }
.demo-header .title {
font-weight: 600;
font-size: 1rem;
color: var(--vp-c-text-1);
}
.demo-header .subtitle {
color: var(--vp-c-text-2);
font-size: 0.85rem;
}
.main-area {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 1rem;
margin-bottom: 0.75rem;
margin-bottom: 1rem;
}
@media (max-width: 768px) {
@@ -152,24 +173,33 @@ const handleBtnClick = () => {
.left-panel {
display: flex;
flex-direction: column;
gap: 0.5rem;
gap: 0.75rem;
}
.modes {
display: flex;
gap: 0.25rem;
gap: 0.5rem;
}
.mode-btn {
flex: 1;
padding: 0.4rem 0.5rem;
padding: 0.5rem 0.75rem;
border: 1px solid var(--vp-c-divider);
border-radius: 4px;
border-radius: 6px;
background: var(--vp-c-bg);
cursor: pointer;
font-size: 0.8rem;
font-weight: 600;
font-weight: 500;
transition: all 0.2s;
display: flex;
align-items: center;
justify-content: center;
gap: 0.4rem;
}
.mode-icon {
font-size: 0.7rem;
color: var(--vp-c-text-3);
}
.mode-btn:hover { background: var(--vp-c-bg-soft); }
@@ -179,43 +209,62 @@ const handleBtnClick = () => {
background: var(--vp-c-brand-soft);
}
.mode-btn.active .mode-icon {
color: var(--vp-c-brand);
}
.preview {
border: 1px solid var(--vp-c-divider);
border-radius: 6px;
padding: 0.75rem;
border-radius: 8px;
padding: 1rem;
background: var(--vp-c-bg);
display: flex;
flex-direction: column;
gap: 0.75rem;
transition: all 0.3s;
}
.badge {
display: inline-flex;
align-items: center;
justify-content: center;
width: 18px;
height: 18px;
width: 20px;
height: 20px;
border-radius: 4px;
background: var(--vp-c-bg-soft);
border: 1px solid var(--vp-c-divider);
margin-right: 8px;
font-weight: 800;
font-weight: 700;
font-size: 11px;
flex-shrink: 0;
}
.hero { margin: 0; cursor: pointer; display: flex; align-items: center; font-size: 1rem; }
.desc { margin: 0; color: var(--vp-c-text-2); cursor: pointer; display: flex; align-items: center; font-size: 0.9rem; }
.hero {
margin: 0;
cursor: pointer;
display: flex;
align-items: center;
font-size: 1.1rem;
transition: all 0.2s;
}
.desc {
margin: 0;
color: var(--vp-c-text-2);
cursor: pointer;
display: flex;
align-items: center;
font-size: 0.9rem;
}
.cta {
width: fit-content;
border: 1px solid var(--vp-c-divider);
border-radius: 6px;
padding: 0.4rem 0.8rem;
padding: 0.5rem 1rem;
cursor: pointer;
background: var(--vp-c-bg);
display: flex;
align-items: center;
font-size: 0.85rem;
font-size: 0.9rem;
transition: all 0.2s;
}
@@ -225,68 +274,80 @@ const handleBtnClick = () => {
border-radius: 4px;
}
.preview.css .hero { color: var(--vp-c-brand); font-size: 1.1rem; }
.preview.css .desc { color: var(--vp-c-text-2); }
.preview.css .cta { background: var(--vp-c-brand); color: #fff; border-color: var(--vp-c-brand); }
.preview.css .hero { color: var(--vp-c-brand); font-weight: 600; }
.preview.css .cta {
background: var(--vp-c-brand);
color: #fff;
border-color: var(--vp-c-brand);
}
.preview.js .cta { background: #22c55e; color: #fff; border-color: #22c55e; }
.preview.js { border-color: rgba(34, 197, 94, 0.4); }
.preview.js .cta {
background: #22c55e;
color: #fff;
border-color: #22c55e;
}
.preview.js { border-color: rgba(34, 197, 94, 0.3); }
.right-panel {
display: flex;
flex-direction: column;
gap: 0.5rem;
gap: 0.75rem;
}
.code-section, .explain-section {
background: var(--vp-c-bg);
border: 1px solid var(--vp-c-divider);
border-radius: 6px;
padding: 0.6rem;
border-radius: 8px;
padding: 0.75rem;
}
.code-label, .explain-label {
font-size: 0.75rem;
font-weight: 600;
color: var(--vp-c-text-2);
margin-bottom: 0.4rem;
margin-bottom: 0.5rem;
text-transform: uppercase;
letter-spacing: 0.5px;
}
.code-block {
background: #0b1221;
background: #1a1a2e;
color: #e5e7eb;
border-radius: 4px;
padding: 0.5rem;
border-radius: 6px;
padding: 0.75rem;
font-family: var(--vp-font-family-mono);
font-size: 0.7rem;
line-height: 1.5;
font-size: 0.75rem;
line-height: 1.6;
overflow-x: auto;
}
.line { padding-left: 0.25rem; }
.hl {
background: var(--vp-c-brand-dimm);
background: rgba(14, 165, 233, 0.2);
border-left: 2px solid var(--vp-c-brand);
font-weight: 600;
margin-left: -0.25rem;
padding-left: 0.5rem;
}
.steps {
margin: 0;
padding-left: 1rem;
padding-left: 1.25rem;
color: var(--vp-c-text-2);
font-size: 0.8rem;
line-height: 1.5;
font-size: 0.85rem;
line-height: 1.6;
}
.steps li {
margin-bottom: 0.25rem;
}
.info-box {
background: var(--vp-c-bg-alt);
padding: 0.6rem;
border-radius: 6px;
padding: 0.75rem 1rem;
border-radius: 8px;
font-size: 0.85rem;
color: var(--vp-c-text-2);
display: flex;
gap: 0.25rem;
}
.info-box .icon { flex-shrink: 0; }
.info-box strong { color: var(--vp-c-text-1); }
</style>