sanbuphy
9ee3312569
refactor(docs): rename "ClaudeCode" to "Claude Code" across all language versions chore: add ESLint configuration and update build scripts style: update component organization and remove unused imports
378 lines
7.6 KiB
Vue
378 lines
7.6 KiB
Vue
<script setup>
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import { ref } from 'vue'
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// 基本类型
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const basicA = ref(10)
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const basicB = ref(null)
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const basicStep = ref(0)
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const basicMessage = ref('')
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// 引用类型
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const obj1Data = ref({ name: '张三', age: 25 })
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const obj2Exists = ref(false)
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const obj2Age = ref('')
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const refMessage = ref('')
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const basicCopy = () => {
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basicB.value = basicA.value
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basicStep.value = 1
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basicMessage.value = '✅ 基本类型复制的是值本身'
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}
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const basicModify = () => {
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if (basicB.value === null) {
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basicMessage.value = '⚠️ 请先复制'
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return
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}
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basicB.value = 20
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basicMessage.value = '✅ 修改 b 不影响 a'
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}
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const refCopy = () => {
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obj2Exists.value = true
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obj2Age.value = obj1Data.value.age
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refMessage.value = '⚠️ 两个变量指向同一份数据'
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}
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const refModify = () => {
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if (!obj2Exists.value) {
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refMessage.value = '⚠️ 请先复制'
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return
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}
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obj1Data.value.age = 30
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obj2Age.value = 30
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refMessage.value = '❌ 两个变量指向同一份数据，改了一个另一个也变了！'
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}
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const refSpreadCopy = () => {
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obj2Exists.value = true
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obj2Age.value = 25
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refMessage.value = '✅ 用展开运算符创建真正的副本，现在互不影响'
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}
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</script>
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<template>
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<div class="reference-demo">
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<h3>值 vs 引用</h3>
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<div class="demo-container">
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<!-- 左侧：基本类型 -->
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<div class="demo-section basic-section">
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<h4>基本类型（复制值）</h4>
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<div class="visualization">
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<div class="box" :class="{ 'active': basicA !== null }">
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<div class="box-label">a</div>
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<div class="box-value">{{ basicA }}</div>
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</div>
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<div class="arrow" v-if="basicStep >= 1">
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<div class="arrow-line"></div>
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<div class="arrow-head">→</div>
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</div>
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<div class="box" :class="{ 'active': basicB !== null }" v-if="basicStep >= 1">
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<div class="box-label">b</div>
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<div class="box-value">{{ basicB }}</div>
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</div>
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</div>
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<div class="message" v-if="basicMessage">{{ basicMessage }}</div>
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<div class="controls">
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<button @click="basicCopy" class="btn-primary">let b = a（复制）</button>
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<button @click="basicModify" class="btn-secondary">b = 20</button>
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</div>
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</div>
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<!-- 右侧：引用类型 -->
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<div class="demo-section reference-section">
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<h4>引用类型（复制地址）</h4>
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<div class="visualization">
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<!-- 数据区 -->
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<div class="data-area">
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<div class="data-label">数据区</div>
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<div class="data-content">
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<div>{{ `{ name: "${obj1Data.name}", age: ${obj1Data.age} }` }}</div>
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</div>
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</div>
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<div class="pointers">
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<div class="pointer">
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<div class="pointer-label">obj1</div>
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<div class="arrow-line-down"></div>
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</div>
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<div class="pointer" v-if="obj2Exists">
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<div class="pointer-label">obj2</div>
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<div class="arrow-line-down"></div>
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</div>
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</div>
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</div>
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<div class="message" v-if="refMessage">{{ refMessage }}</div>
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<div class="controls">
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<button @click="refCopy" class="btn-primary">let obj2 = obj1（复制）</button>
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<button @click="refModify" class="btn-danger">obj2.age = 30</button>
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<button @click="refSpreadCopy" class="btn-success">用展开运算符创建副本</button>
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</div>
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</div>
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</div>
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<div class="code-display">
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<h4>代码</h4>
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<pre><code>// 基本类型
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let a = {{ basicA }}
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{{ basicB !== null ? `let b = ${basicB}` : '' }}
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{{ basicB !== null ? `b = ${basicB}` : '' }}
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console.log(a) // {{ basicA }}
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// 引用类型
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let obj1 = { name: "{{ obj1Data.name }}", age: {{ obj1Data.age }} }
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{{ obj2Exists ? 'let obj2 = obj1 // 指向同一份数据' : '' }}
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{{ obj2Exists ? `obj2.age = ${obj1Data.age}` : '' }}
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console.log(obj1.age) // {{ obj1Data.age }}
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</code></pre>
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</div>
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</div>
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</template>
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<style scoped>
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.reference-demo {
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border: 1px solid var(--vp-c-border);
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border-radius: 12px;
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padding: 24px;
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margin: 24px 0;
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background: var(--vp-c-bg);
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}
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h3 {
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margin: 0 0 20px 0;
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font-size: 18px;
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font-weight: 600;
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color: var(--vp-c-text-1);
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}
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h4 {
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margin: 0 0 16px 0;
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font-size: 14px;
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font-weight: 600;
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color: var(--vp-c-text-2);
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}
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.demo-container {
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display: grid;
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grid-template-columns: 1fr 1fr;
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gap: 24px;
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margin-bottom: 24px;
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}
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@media (max-width: 768px) {
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.demo-container {
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grid-template-columns: 1fr;
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}
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}
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.demo-section {
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border: 1px dashed var(--vp-c-border);
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border-radius: 8px;
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padding: 20px;
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background: var(--vp-c-bg-soft);
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}
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.visualization {
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display: flex;
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align-items: center;
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justify-content: center;
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gap: 20px;
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margin-bottom: 16px;
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min-height: 120px;
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}
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.box {
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width: 80px;
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height: 80px;
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border: 2px solid var(--vp-c-border);
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border-radius: 8px;
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display: flex;
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flex-direction: column;
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align-items: center;
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justify-content: center;
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background: var(--vp-c-bg);
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transition: all 0.3s ease;
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}
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.box.active {
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border-color: var(--vp-c-brand-1);
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box-shadow: 0 0 0 3px rgba(62, 175, 124, 0.1);
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}
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.box-label {
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font-size: 12px;
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font-weight: 600;
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color: var(--vp-c-text-2);
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margin-bottom: 4px;
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}
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.box-value {
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font-size: 24px;
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font-weight: 600;
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font-family: 'Courier New', monospace;
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color: var(--vp-c-brand-1);
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}
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.arrow {
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display: flex;
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align-items: center;
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gap: 4px;
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}
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.arrow-line {
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width: 40px;
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height: 2px;
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background: var(--vp-c-brand-1);
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}
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.arrow-head {
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font-size: 24px;
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color: var(--vp-c-brand-1);
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}
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.data-area {
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text-align: center;
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}
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.data-label {
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font-size: 12px;
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font-weight: 600;
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color: var(--vp-c-text-2);
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margin-bottom: 8px;
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}
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.data-content {
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border: 2px solid var(--vp-c-brand-1);
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border-radius: 8px;
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padding: 12px;
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background: var(--vp-c-bg);
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font-family: 'Courier New', monospace;
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font-size: 12px;
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color: var(--vp-c-text-1);
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}
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.pointers {
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display: flex;
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gap: 24px;
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margin-top: 12px;
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}
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.pointer {
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text-align: center;
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}
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.pointer-label {
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font-size: 12px;
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font-weight: 600;
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color: var(--vp-c-text-2);
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margin-bottom: 4px;
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}
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.arrow-line-down {
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width: 2px;
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height: 30px;
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background: var(--vp-c-brand-1);
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margin: 0 auto;
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}
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.message {
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text-align: center;
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padding: 8px;
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border-radius: 6px;
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margin-bottom: 12px;
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font-size: 13px;
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font-weight: 500;
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background: var(--vp-c-bg-soft);
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color: var(--vp-c-text-1);
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}
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.controls {
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display: flex;
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gap: 8px;
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flex-wrap: wrap;
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}
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button {
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padding: 6px 12px;
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border: none;
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border-radius: 6px;
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font-size: 13px;
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font-weight: 500;
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cursor: pointer;
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transition: all 0.2s ease;
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}
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button:active {
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transform: scale(0.95);
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}
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.btn-primary {
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background: var(--vp-c-brand-1);
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color: white;
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}
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.btn-primary:hover {
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background: var(--vp-c-brand-2);
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}
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.btn-secondary {
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background: var(--vp-c-bg-soft);
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color: var(--vp-c-text-1);
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}
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.btn-secondary:hover {
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background: var(--vp-c-bg-soft-hover);
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}
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.btn-danger {
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background: #f56565;
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color: white;
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}
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.btn-danger:hover {
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background: #e53e3e;
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}
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.btn-success {
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background: #38a169;
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color: white;
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}
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.btn-success:hover {
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background: #2f855a;
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}
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.code-display {
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background: #1e1e1e;
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border-radius: 8px;
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padding: 16px;
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overflow-x: auto;
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}
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.code-display h4 {
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color: #d4d4d4;
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margin-bottom: 12px;
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}
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.code-display pre {
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margin: 0;
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}
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.code-display code {
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font-family: 'Courier New', monospace;
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font-size: 13px;
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line-height: 1.6;
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color: #d4d4d4;
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}
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</style>
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