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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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+ <script src="./js/vue.js"></script>
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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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+ <!-- v-for 实现循环 -->
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+ <!-- 每次循环的值 in 循环的数组 -->
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+ <!-- <li v-for="item in list">{{item}}</li> -->
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+ <!-- 循环数组时 可以使用 v-bind:key 绑定一个唯一的key值 给每一个li打个编号，可以保障vue识别出每一个li -->
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+ <li v-for="(item,index) in list" v-bind:key="index">索引为：{{index}},值为：{{item}}</li>
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+ </ul>
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+ <ul>
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+ <li v-for="(value,key) in obj" v-bind:key="key"> 键为：{{key}},值为：{{value}} </li>
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+ </ul>
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+ </div>
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+ <script>
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+ new Vue({
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+ el:"#app",
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+ data:{
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+ list:["张三","李四","王五","赵六"],
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+ obj:{
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+ userName:"张三",
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+ age:18,
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+ sex:"男"
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+ }
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+ }
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+ })
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+ </script>
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+</body>
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+</html>
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