vueJS 008 遍歷

1. 插值

<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="../js/vue2.6.11.js"></script>
    <style type="text/css">

    </style>
</head>
<body>
<div id="app">
    <div>{{nums[0]}}</div>
    <div>{{nums[1]}}</div>
    <div>{{nums[2]}}</div>
</div>
<script>
    var vm = new Vue({
        el: '#app',
        data:{
            nums:[1,2,3]
        }
    });
</script>
</body>
</html>

2. v-for

<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="../js/vue2.6.11.js"></script>
    <style type="text/css">

    </style>
</head>
<body>
<div id="app">
    <div v-for="(v,i) in nums">{{i}} 個數字:{{v}}</div>
</div>
<script>
    var vm = new Vue({
        el: '#app',
        data:{
            nums:[1,2,3]
        }
    });
</script>
</body>
</html>

3. 嵌套循環

<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="../js/vue2.6.11.js"></script>
    <style type="text/css">

    </style>
</head>
<body>
<div id="app">
    <div v-for="(v,i) in plants">
        <div v-for="(val,key,n) in v">鍵:{{key}} , 值: {{val}} , 角標:{{n}}</div>
    </div>
</div>
<script>
    var vm = new Vue({
        el: '#app',
        data:{
            plants:[
                {id:1,name:"百山祖冷杉",survive:"已滅絕"}
                ,{id:2,name:"普陀鵝耳櫪",survive:"已滅絕"}
            ]
        }
    });
</script>
</body>
</html>

4 . 指定循環次數

<!doctype html>
<html lang="zh">
<head>
    <meta charset="UTF-8">
    <meta name="viewport"
          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="../js/vue2.6.11.js"></script>
    <style type="text/css">
        button{
            height: 37px;
            width: 100px;
        }
    </style>
</head>
<body>
<div id="app">
    <div v-for="counter in 5">
        <button>{{counter}}</button>
    </div>
</div>
<script>
    var vm = new Vue({
        el: '#app'
    });
</script>
</body>
</html>
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