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VueDemoV-for.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue demo v-for中key的使用</title>
<style>
</style>
</head>
<body>
<div id="div1">
<div>
ID值：<input type="text" v-model="id">
Name: <input type="text" v-model="name">
<input type="button" value="增加" @click="add">
</div>
<p v-for="user in list" :key="user.id"><input type="checkbox">{{user.id}}==={{user.name}}</p>
</div>
<!-- 先引入 Vue 【https://unpkg.com/[email protected]/dist/vue.js】 -->
<script src="https://unpkg.com/vue/dist/vue.js"></script>
<script>
var vm = new Vue({
el: "#div1",
data: {
id: "",
name: "",
list: [
{id: 1, name: "周杰伦"},
{id: 2, name: "张杰"},
{id: 3, name: "王力宏"},
{id: 4, name: "林俊杰"},
]
},
methods: {
add() { // 添加方法
this.list.unshift({id: this.id, name: this.name})
}
}
})
</script>
</body>
</html>