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                合規國際互聯網加速 OSASE為企業客戶提供高速穩定SD-WAN國際加速解決方案。 廣告
                # 樹狀視圖 Example > 這個例子實現了一個簡單的樹狀視圖,演示如何遞歸使用組件。 ![](https://box.kancloud.cn/2016-01-03_5688e1a9ca5e4.png) html ``` <!-- item template --> <script type="text/x-template" id="item-template"> <li> <div :class="{bold: isFolder}" @click="toggle" @dblclick="changeType"> {{model.name}} <span v-if="isFolder">[{{open ? '-' : '+'}}]</span> </div> <ul v-show="open" v-if="isFolder"> <item class="item" v-for="model in model.children" :model="model"> </item> <li @click="addChild">+</li> </ul> </li> </script> <p>(You can double click on an item to turn it into a folder.)</p> <!-- the demo root element --> <ul id="demo"> <item class="item" :model="treeData"> </item> </ul> ``` js ``` // demo data var data = { name: 'My Tree', children: [ { name: 'hello' }, { name: 'wat' }, { name: 'child folder', children: [ { name: 'child folder', children: [ { name: 'hello' }, { name: 'wat' } ] }, { name: 'hello' }, { name: 'wat' }, { name: 'child folder', children: [ { name: 'hello' }, { name: 'wat' } ] } ] } ] } // define the item component Vue.component('item', { template: '#item-template', props: { model: Object }, data: function () { return { open: false } }, computed: { isFolder: function () { return this.model.children && this.model.children.length } }, methods: { toggle: function () { if (this.isFolder) { this.open = !this.open } }, changeType: function () { if (!this.isFolder) { Vue.set(this.model, 'children', []) this.addChild() this.open = true } }, addChild: function () { this.model.children.push({ name: 'new stuff' }) } } }) // boot up the demo var demo = new Vue({ el: '#demo', data: { treeData: data } }) ``` css ``` body { font-family: Menlo, Consolas, monospace; color: #444; } .item { cursor: pointer; } .bold { font-weight: bold; } ul { padding-left: 1em; line-height: 1.5em; list-style-type: dot; } ```
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                              哎呀哎呀视频在线观看