Smarty 模板的 if 判断和 foreach 循环 [ 新手入门 ]

<?php
<{if !empty($ad)}>
<div class="right-item spaces">
    <ul class="item-list clearfix">
        <{foreach from=$ad key=k item=v}>
        <li>
            <a href="<{$v['url']}>" title="<{$v['name']}>" rel="nofollow" >
                <img src="<{$v['img']}>" width="270" height="120" alt="<{$v['name']}>">
            </a>
        </li>
        <{/foreach}>
    </ul>
</div>
<{/if}>
?>