thinkphp教程：内置标签volist 控制换行

volist标签通常用于查询数据集（select方法）的结果输出，通常模型的select方法返回的结果是一个二维数组，可以直接使用volist标签进行输出。在控制器中首先对模版赋值$User = M('User');文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

$list = $User->limit(10)->select();文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

$this->assign('list',$list);文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

在模版定义如下，循环输出用户的编号和姓名：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}:{$}<br/>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

Volist标签的name属性表示模板赋值的变量名称，因此不可随意在模板文件中改变。id表示当前的循环变量，可以随意指定，但确保不要和name属性冲突，例如：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="data">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}:{$}<br/>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

支持输出查询结果中的部分数据，例如输出其中的第5～15条记录文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"offset="5"length='10'>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

输出偶数记录文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"mod="2">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<eqname="mod"value="1">{$}</eq>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

Mod属性还用于控制一定记录的换行，例如：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"mod="5">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<eqname="mod"value="4"><br/></eq>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

为空的时候输出提示：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"empty="暂时没有数据">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}|{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

empty属性不支持直接传入html语法，但可以支持变量输出，例如：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

$this->assign('empty','<span class="empty">没有数据</span>');文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

$this->assign('list',$list);文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

然后在模板中使用：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"empty="$empty">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$}|{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

输出循环变量文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo"key="k">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$k}.{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

如果没有指定key属性的话，默认使用循环变量i，例如：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$i}.{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

如果要输出数组的索引，可以直接使用key变量，和循环变量不同的是，这个key是由数据本身决定，而不是循环控制的，例如：文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<volistname="list"id="vo">文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

{$key}.{$}文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

</volist>文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

因为我的数据key是时间戳所以只能用mod文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

mod 是从0 开始计数的文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

我的代码文章源自菜鸟学院-https://www.cainiaoxueyuan.com/bc/10862.html

<tr><volist name="more" id="vo4" mod="5"><td ><a class="ercode modalA" href="#" data-data="__ROOT__/<{$}>" data-toggle="modal" data-target="#myModal" data-href="<{:U('Index/modal',array('id'=>$file['id']))}>"><i><font><img src="__PUBLIC__/img/ico/<{$}>.ico" style="width:2em;"></font></i><{$vo4.name}><{$mod}></a></td>
<eq name="mod" value="4" ></tr></eq>