模板标签速查

{loop} 自带空值保护：列表是空的，整段不输出。
所以不用再包一层 {if}。

{/loop} 自己就带结束，不要再补 {/if}。

{$article.description|limit=120}
{$article.created_at|date=Y年m月d日}

过滤器参数只能写死的数字或文字。
不能写 {$var}，也不能写 100*2。

<nav class="nav">
  <ul>
    <li><a href="/">首页</a></li>
    {loop $primary_nav as $nav}
    <li>
      <a href="{$nav.url}"{if $nav.target == '_blank'} target="_blank" rel="noopener"{/if}>{$nav.name}</a>
      {if !empty($nav.children)}
      <ul class="subnav">
        {loop $nav.children as $sub}
        <li><a href="{$sub.url}"{if $sub.target == '_blank'} target="_blank" rel="noopener"{/if}>{$sub.name}</a></li>
        {/loop}
      </ul>
      {/if}
    </li>
    {/loop}
  </ul>
</nav>

{loop $list as $item}
<article>
  <a href="{$item.url}">
    {if !empty($item.thumb)}
    <img src="{$item.thumb|thumb=280,200}" alt="{$item.title}">
    {/if}
    <h3>{$item.title}</h3>
  </a>
  <p>{$item.description|limit=90}</p>
  <time>{$item.created_at|date=Y-m-d}</time>
</article>
{/loop}

{if empty($list)}
<div>这个栏目还没有内容。</div>
{/if}

{include common/pager}

{if !empty($prev)}
<a href="{$prev.url}">上一篇：{$prev.title|limit=30}</a>
{/if}
{if !empty($next)}
<a href="{$next.url}">下一篇：{$next.title|limit=30}</a>
{/if}

{if !empty($related)}
<section>
  <h2>相关阅读</h2>
  <ul>
    {loop $related as $item}
    <li><a href="{$item.url}">{$item.title|limit=36}</a></li>
    {/loop}
  </ul>
</section>
{/if}

<form action="/search" method="get">
  <input type="search" name="q" value="{$keyword}" placeholder="搜索…">
  <button type="submit">搜索</button>
</form>

{if !empty($user)}
  <a href="/member">{$user.username}</a>
  <a href="/logout">退出</a>
{else}
  <a href="/login">登录</a>
  <a href="/register">注册</a>
{/if}

<footer>
  <p>{$site.copyright|default=''}</p>
  {if !empty($site.icp)}
  <a href="https://beian.miit.gov.cn/" target="_blank">{$site.icp}</a>
  {/if}
  {if !empty($site.statistics)}{$site.statistics|raw}{/if}
</footer>

{loop $primary_nav as $nav}
<a class="{if !empty($nav.active)}is-active{/if}" href="{$nav.url}">{$nav.name}</a>
{/loop}