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48 lines
1.4 KiB
48 lines
1.4 KiB
3 years ago
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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>更新时的一个问题</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="updateMei">更新马冬梅信息</button>
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<ul>
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<li v-for="(data, index) in listData" :key="data.id">
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{{data.name}} - {{data.age}} - {{data.sex}}
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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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// 使用computed实现
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const vm = new Vue({
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el: "#root",
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data: {
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keyword: '',
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sortType: 0, // 0-原顺序 1-年龄降序 2-年龄升序
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listData: [
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{id: 1, name: '马冬梅', age: 25, sex: '女'},
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{id: 2, name: '周冬雨', age: 19, sex: '女'},
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{id: 3, name: '周杰伦', age: 20, sex: '男'},
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{id: 4, name: '温兆伦', age: 17, sex: '男'}
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],
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},
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methods: {
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updateMei() {
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// this.listData[0].name = '马老师'
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// this.listData[0].age = 55
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// this.listData[0].sex = '男'
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// this.listData[0] = {id: 1, name: '马老师', age: 55, sex: '男'}
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this.listData.splice(0, 1, {id: 1, name: '马老师', age: 55, sex: '男'} )
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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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