lovecoding
/
W250511


			
				
					
						
						
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							<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="./js/vue.js"></script>
</head>
<body>
    <div id="app">
        <ul>
            <!-- v-for 实现循环 -->
             <!-- 每次循环的值 in  循环的数组 -->
            <!-- <li v-for="item in list">{{item}}</li> -->
             <!-- 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 -->
             <li v-for="(item,index) in list" v-bind:key="index">索引为：{{index}},值为：{{item}}</li>
        </ul>
        <ul>
            <li v-for="(value,key) in obj" v-bind:key="key"> 键为：{{key}},值为：{{value}} </li>
        </ul>
    </div>
    <script>
        new Vue({
            el:"#app",
            data:{
                list:["张三","李四","王五","赵六"],
                obj:{
                    userName:"张三",
                    age:18,
                    sex:"男"
                }
            }
        })
    </script>
</body>
</html>