内容页 根据标签读取相关内容，无相关内容，则随机读取内容

内容页~~~

1、先在taglike标签的前面定义taglikedata=0，表示taglike无内容

{php}$taglikedata = 0;{/php}

2、taglike标签写法如下，如果有内容，$taglikedata = 1

{block:taglike type="1" limit="5"}
{if:$data[list]}
{php}$taglikedata = 1;{/php}
<div class="row" style="margin-top: 10px;">
	<section>
		<div class="thleftcon">
			<div class="thleftbt thwenzhang"><span>猜你喜欢</span></div>
			<ul class="th-5">
				{loop:$data[list] $v}<li><a href="{$v[url]}">{$v[subject]}</a></li>{/loop}
			</ul>
		</div>
	</section>
</div>
{/if}
{/block}

3、判断taglikedata的值，为0的话，调用list_rand标签

{if:$taglikedata == 0}
{block:list_rand mid="2" limit="12" life="600"}
<div class="thleftcon">
	<div class="thleftbt"><span>猜你喜欢</span></div>
	<ul class="th-6">
		{loop:$data[list] $v}
		<li class="post_id_{$v[id]}">
			<div class="gundongimg">
				<a href="{$v[url]}" title="{$v[title]}">
					<div class="zhuantiinfo">{$v[subject]}</div>
				</a>
			</div>
		</li>
		{/loop}
	</ul>
</div>
{/block}
{/if}