<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>更新时的一个问题</title>
<script type="text/javascript" src="../vue.js"></script>
</head>
<body>
<div id="root">
<!-- 遍历列表-->
<h2>人员列表</h2>
<button @click="updateMei">更新马冬梅信息</button>
<ul>
<li v-for="(data, index) in listData" :key="data.id">
{{data.name}} - {{data.age}} - {{data.sex}}
</li>
</ul>
</div>
</body>
<script type="text/javascript">
Vue.config.productionTip = false
// 使用computed实现
const vm = new Vue({
el: "#root",
data: {
keyword: '',
sortType: 0, // 0-原顺序 1-年龄降序 2-年龄升序
listData: [
{id: 1, name: '马冬梅', age: 25, sex: '女'},
{id: 2, name: '周冬雨', age: 19, sex: '女'},
{id: 3, name: '周杰伦', age: 20, sex: '男'},
{id: 4, name: '温兆伦', age: 17, sex: '男'}
],
},
methods: {
updateMei() {
// this.listData[0].name = '马老师'
// this.listData[0].age = 55
// this.listData[0].sex = '男'
// this.listData[0] = {id: 1, name: '马老师', age: 55, sex: '男'}
this.listData.splice(0, 1, {id: 1, name: '马老师', age: 55, sex: '男'} )
}
}
})
</script>
</html>