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Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="UTF-8">
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<title>Key的原理</title>
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<script type="text/javascript" src="../vue.js"></script>
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</head>
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<body>
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<div id="root">
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<!-- 遍历列表-->
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<h2>人员列表</h2>
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<button @click.once="addPerson">添加一个人</button>
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<ul>
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<!-- 方法一-->
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<!-- <li v-for="d in listData" :key="d.id">{{d.name}} - {{d.age}}</li>-->
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<!-- 方法二-->
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<li v-for="(data, index) in listData" :key="data.id">
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{{data.name}} - {{data.age}}
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<input type="text">
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</li>
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</ul>
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</div>
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</body>
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<script type="text/javascript">
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Vue.config.productionTip = false
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const vm = new Vue({
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el: "#root",
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data: {
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listData: [
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{id: 1, name: '张三', age: 18},
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{id: 2, name: '李四', age: 19},
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{id: 3, name: '王五', age: 20}
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]
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},
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methods:{
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addPerson() {
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const p = {id: 0, name: "赵老大", age: 80}
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this.listData.unshift(p)
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}
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}
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})
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</script>
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</html>
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