Vue中for循环的用法总结如下:


1.基本用法 v-for

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>

    </style>
    <script src="vue.js"></script>
    <script>
        window.οnlοad=function(){
            new Vue({
                el:'#box',
                data:{
                    arr:['apple','banana','orange','pear']
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <ul>
            <li v-for="value in arr">
                {{value}}
            </li>
        </ul>
    </div>
</body>
</html>

结果:


2.带索引的用法

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title></title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>

    </style>
    <script src="vue.js"></script>
    <script>
        window.οnlοad=function(){
            new Vue({
                el:'#box',
                data:{
                    arr:['apple','banana','orange','pear']
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <ul>
            <li v-for="value in arr">
                {{value}}   {{$index}}
            </li>
        </ul>
    </div>
</body>
</html>

描述:

使用{{$index}}可以提供索引

结果:

3.使用(k,y) in arr

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>智能社——http://www.zhinengshe.com</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=0">
    <meta name="apple-mobile-web-app-capable" content="yes">
    <meta name="apple-mobile-web-app-status-bar-style" content="black">
    <style>

    </style>
    <script src="vue.js"></script>
    <script>
        window.οnlοad=function(){
            new Vue({
                el:'#box',
                data:{
                    arr:['apple','banana','orange','pear'],
                    json:{a:'apple',b:'banana',c:'orange'}
                }
            });
        };
    </script>
</head>
<body>
    <div id="box">
        <ul>
            <li v-for="value in arr">
                {{value}}   {{$index}}
            </li>
        </ul>
        <hr>
        <ul>
            <li v-for="value in json">
                {{value}}   {{$index}}  {{$key}}
            </li>
        </ul>

        <hr>
        <ul>
            <li v-for="(k,v) in json">
                {{k}}   {{v}}   {{$index}}  {{$key}}
            </li>
        </ul>
    </div>
</body>
</html>

描述:

{{k,v}} in arr         k代表key,  v代表value

结果:


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