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v-for遍歷陣列和物件

v-for最簡單的遍歷陣列

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <ul>
            <!-- v-for最基礎的陣列遍歷 -->
            <li v-for
= 'i in names'>{{i}}</li> </ul> </div> <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> <script> const app = new Vue({ el: '#app', data : { names : ['jack','mary','lucy','jerry'] } })
</script> </body> </html>

如果需要索引(下標),新增index即可

            <li v-for = '(i, index) in names'>{{index}}+{{i}}</li>

v-for遍歷物件

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <div id="app">
        <ul>
            <li v-for
= '(value,key) in info'>{{key}}----{{value}}</li> </ul> </div> <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> <script> const app = new Vue({ el: '#app', data : { info : { name :'mary', age : 20, gender : 'female' } } }) </script> </body> </html>

也可以用index獲取下標,在物件的遍歷中比較少用