blocks|key|1021489|text|<div+id="app"+class="container">
++++<div+v-for="player+in+players">
++++++++<div+class="row"+v-if="($index+%2B+1)+%25+3+==+0+">
++++++++++{{$index+%2B+1}}
++++++++</div>
++++</div>
</div>|type|code-block|depth|inlineStyleRanges|entityRanges|data|syntax|javascript|1021490|$index是v-for中的一个特殊变量|unstyled|1021491|http://vuejs.org/guide/list.html#v-for|offset|length|1021492|entityMap|0|LINK|mutability|MUTABLE|url^0|0|0|0|12|0|0^^$0|@$1|2|3|4|5|6|7|R|8|@]|9|@]|A|$B|C]]|$1|D|3|E|5|F|7|S|8|@]|9|@]|A|$]]|$1|G|3|H|5|F|7|T|8|@]|9|@$I|U|J|V|1|W]]|A|$]]|$1|K|3|-4|5|F|7|X|8|@]|9|@]|A|$]]]|L|$M|$5|N|O|P|A|$Q|H]]]]

<pre><code>&lt;div id="app" class="container"&gt;
    &lt;div v-for="player in players"&gt;
        &lt;div class="row" v-if="($index + 1) % 3 == 0 "&gt;
          {{$index + 1}}
        &lt;/div&gt;
    &lt;/div&gt;
&lt;/div&gt;
</code></pre>

<p>$index is a special variable inside v-for</p>

<p><a href="http://vuejs.org/guide/list.html#v-for" rel="nofollow">http://vuejs.org/guide/list.html#v-for</a></p>


blocks|key|1021499|text|我想我想通了|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1021500|<template+id="players-template">
<div+class="row">
++++<template+v-for="player+in+players">
++++++++<div+class="col-md-4">
++++++++++++<div+class="panel+panel-default">
++++++++++++++++<div+class="panel-heading">
++++++++++++++++++++<h3+class="panel-title">
++++++++++++++++++++++++<a+href="#">{{+player.username+}}</a>
++++++++++++++++++++++++<span+class="small+pull-right">{{+player.createdAt+}}</span>
++++++++++++++++++++</h3>
++++++++++++++++</div>

++++++++++++++++<div+class="panel-body">
++++++++++++++++++++<img+alt=""+class="img-circle+center-block">
++++++++++++++++</div>
++++++++++++++++<div+class="panel-footer">
++++++++++++++++++++<div+class="btn-group+btn-group-justified"+role="group"+aria-label="...">
++++++++++++++++++++++++<a+href="#"+class="btn+btn-primary+btn-success+send-message"+data-toggle="tooltip"+data-placement="bottom"+title="Wyślij+wiadomość"+id="{{+player.username+}}"><span+class="glyphicon+glyphicon-envelope"></span>&nbsp;</a>
++++++++++++++++++++++++<a+href="#"+class="btn+btn-primary+btn-info"+data-toggle="tooltip"+data-placement="bottom"+title="Pokaż+profil"><span+class="glyphicon+glyphicon-user"></span>&nbsp;</a>
++++++++++++++++++++++++<a+href="#"+class="btn+btn-primary+btn-primary"+data-toggle="tooltip"+data-placement="bottom"+title="Zobacz+szczegółowe+informacje+o+poście"><span+class="glyphicon+glyphicon-option-horizontal"></span>&nbsp;</a>
++++++++++++++++++++</div>
++++++++++++++++</div>
++++++++++++</div>
++++++++</div>

++++++++<template+v-if="($index+%2B+1)+%25+3+==+0+">
++++++++</div><div+class="row">
++++++++</template>
++++</template>
</div>
</template>|code-block|syntax|javascript|1021501|诀窍是在循环之前打开一行，然后在之后关闭它。但是，在每三个玩家之后，我们关闭行并打开一个新行。这将导致每三个玩家占一行。|1021502|但是，在大多数情况下，这并不是必需的-因为您使用了col-md-4，所以bootstrap应该知道将每组三个带到一个新行中|offset|length|style|CODE|1021503|entityMap^0|0|0|0|P|8|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|R|8|@]|9|@]|A|$E|F]]|$1|G|3|H|5|6|7|S|8|@]|9|@]|A|$]]|$1|I|3|J|5|6|7|T|8|@$K|U|L|V|M|N]]|9|@]|A|$]]|$1|O|3|-4|5|6|7|W|8|@]|9|@]|A|$]]]|P|$]]

<p>I think I figured this out</p>

<pre><code>&lt;template id="players-template"&gt;
&lt;div class="row"&gt;
    &lt;template v-for="player in players"&gt;
        &lt;div class="col-md-4"&gt;
            &lt;div class="panel panel-default"&gt;
                &lt;div class="panel-heading"&gt;
                    &lt;h3 class="panel-title"&gt;
                        &lt;a href="#"&gt;{{ player.username }}&lt;/a&gt;
                        &lt;span class="small pull-right"&gt;{{ player.createdAt }}&lt;/span&gt;
                    &lt;/h3&gt;
                &lt;/div&gt;

                &lt;div class="panel-body"&gt;
                    &lt;img alt="" class="img-circle center-block"&gt;
                &lt;/div&gt;
                &lt;div class="panel-footer"&gt;
                    &lt;div class="btn-group btn-group-justified" role="group" aria-label="..."&gt;
                        &lt;a href="#" class="btn btn-primary btn-success send-message" data-toggle="tooltip" data-placement="bottom" title="Wyślij wiadomość" id="{{ player.username }}"&gt;&lt;span class="glyphicon glyphicon-envelope"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                        &lt;a href="#" class="btn btn-primary btn-info" data-toggle="tooltip" data-placement="bottom" title="Pokaż profil"&gt;&lt;span class="glyphicon glyphicon-user"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                        &lt;a href="#" class="btn btn-primary btn-primary" data-toggle="tooltip" data-placement="bottom" title="Zobacz szczegółowe informacje o poście"&gt;&lt;span class="glyphicon glyphicon-option-horizontal"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                    &lt;/div&gt;
                &lt;/div&gt;
            &lt;/div&gt;
        &lt;/div&gt;

        &lt;template v-if="($index + 1) % 3 == 0 "&gt;
        &lt;/div&gt;&lt;div class="row"&gt;
        &lt;/template&gt;
    &lt;/template&gt;
&lt;/div&gt;
&lt;/template&gt;
</code></pre>

<p>The trick is opening a row before the loop, then closing it afterwards.  But, after every third player, we close the row and open a new one.  This will result in one row for every three players.</p>

<p>In most cases however, this isn't necessary - bootstrap would know to bring each set of three to a new row because you used <code>col-md-4</code></p>


<pre><code>&lt;template id="players-template"&gt;
&lt;div v-for="player in players" v-bind:class="{ 'row': $index == 0}"&gt;
    &lt;div class="col-md-4"&gt;
        &lt;div class="panel panel-default"&gt;
            &lt;div class="panel-heading"&gt;
                &lt;h3 class="panel-title"&gt;
                    &lt;a href="#"&gt;{{ player.username }}&lt;/a&gt;
                    &lt;span class="small pull-right"&gt;{{ player.createdAt }}&lt;/span&gt;
                &lt;/h3&gt;
            &lt;/div&gt;

            &lt;div class="panel-body"&gt;
                &lt;img alt="" class="img-circle center-block"&gt;
            &lt;/div&gt;
            &lt;div class="panel-footer"&gt;
                &lt;div class="btn-group btn-group-justified" role="group" aria-label="..."&gt;
                    &lt;a href="#" class="btn btn-primary btn-success send-message" data-toggle="tooltip" data-placement="bottom" title="Wyślij wiadomość" id="{{ player.username }}"&gt;&lt;span class="glyphicon glyphicon-envelope"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                    &lt;a href="#" class="btn btn-primary btn-info" data-toggle="tooltip" data-placement="bottom" title="Pokaż profil"&gt;&lt;span class="glyphicon glyphicon-user"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                    &lt;a href="#" class="btn btn-primary btn-primary" data-toggle="tooltip" data-placement="bottom" title="Zobacz szczegółowe informacje o poście"&gt;&lt;span class="glyphicon glyphicon-option-horizontal"&gt;&lt;/span&gt;&amp;nbsp;&lt;/a&gt;
                &lt;/div&gt;
            &lt;/div&gt;
        &lt;/div&gt;
    &lt;/div&gt;
    &lt;/div&gt;
</code></pre>

<p></p>

<p>I want to end the div with class of row each third element and then append new row. How can I use <code>if</code> conditions ?</p>


Vue template conditional rener

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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<template id="players-template"><div v-for="player in players" v-bind:class="{ 'row': $index == 0}">    <div class="col-md-4">        <div class="panel panel-de...

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