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@@ -0,0 +1,73 @@
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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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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+</head>
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+<body>
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+ <div id="app">
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+ <ul>
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+ <li v-for="(item,index) in arr" :key="index">
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+ {{index+1}}-我叫{{item.name}}--今年{{item.age}}--是一个{{item.sex}}孩
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+ </li>
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+ </ul>
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+ <button v-on:click="changeDate">修改第二条数据</button>
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+ </div>
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+ <script src="./vue.js"></script>
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+ <script>
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+ var app = new Vue({
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+ data:{
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+ arr: [
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+ {
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+ name: "LiLi",
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+ age: 10,
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+ sex: "女",
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+ },
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+ {
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+ name: "John",
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+ age: 17,
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+ sex: "男",
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+ },
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+ {
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+ name: "Lucy",
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+ age: 22,
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+ sex: "女",
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+ },
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+ {
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+ name: "Jack",
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+ age: 20,
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+ sex: "男",
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+ },
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+ {
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+ name: "孙悟空",
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+ age: 33,
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+ sex: "男",
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+ },
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+ {
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+ name: "猪八戒",
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+ age: 30,
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+ sex: "男",
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+ },
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+ ],
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+ },
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+ methods:{
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+ changeDate() {
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+ console.log("触发")
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+ // this.arr[1].sex = '女'
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+ this.arr[1] = { name:'林黛玉',age:6,sex:'女'}
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+ // 数据更新
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+ // 视图不变
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+ // Vue2.0 => 响应式框架
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+ // MVVM => Object.defineProperty getter和setter
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+ console.log(this.arr,'arr')
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+ // Vue.set(target,index/name,newValue)
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+ // Vue.set(this.arr,1,{ name:'林黛玉',age:6,sex:'女'})
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+ // this.$set(this.arr,1,{ name:'林黛玉',age:6,sex:'女'})
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+ }
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+ }
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+
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+ }).$mount("#app");
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+ </script>
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+</body>
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+</html>
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