destoon 判断首页只调用内容页的前三张图片

	<?php 
				$matchs = [];
				preg_match_all('/<img.*?src="(.*?)"/', $t[content], $matchs);
			   
				
				$images = [];
				
				$length = count($matchs[1]);
				 
				if ($length > 3) {
				  $length = 3;
				}
				
				 
				for ($i = 0; $i < $length; $i++) {

						$images[] = $matchs[1][$i];
				}

		  ?>

第一张图：

{$images[0]}

第二张图：

{$images[0]}

第三张图：

{$images[0]}

下面案例：

<ul class="aui-list aui-media-list dt-article-list" id="slistdiv">
          {loop $MOD_MY $i $m}
			<!--{php $tags=tag("moduleid=".$m['moduleid']."&condition=status=3&length=40&showcontent=1&showcat=1&pagesize=20&order=addtime desc&template=null");}--> 
			
			{loop $tags $i $t}
			
				<?php 
				$matchs = [];
				preg_match_all('/<img.*?src="(.*?)"/', $t[content], $matchs);
			   
				
				$images = [];
				
				$length = count($matchs[1]);
				 
				if ($length > 3) {
				  $length = 3;
				}
				
				 
				for ($i = 0; $i < $length; $i++) {

						$images[] = $matchs[1][$i];
				}

		  ?>
		  {if $length == 0}
          <li class="aui-list-item aui-padded-t-5 aui-padded-b-5">
            <div class="aui-media-list-item-inner">
              <div class="aui-list-item-inner">
                <div class="aui-list-item-title aui-ellipsis-2"><a href="21-0-370-1.html">{$t[title]}...</a></div>
                <div class="aui-list-item-text">
                  <div><span>军事科技</span><span class="aui-margin-l-10">0<i class="aui-iconfont aui-icon-comment aui-margin-l-5"></i></span></div>
                </div>
              </div>
            </div>
          </li>
		{/if}
			
		{if $length == 3}
          <li class="aui-list-item">
            <div class="aui-list-item-inner">
              <div class="aui-list-item-title"><a href="{$t[linkurl]}">{$t[title]}...</a></div>
              <p class="aui-ellipsis-2">{$t[introduce]}</p>
              <div class="aui-row aui-row-padded aui-margin-t-5">

                <div class="aui-col-xs-4">
                  <a href="{$t[linkurl]}"><img src="{$images[0]}" height="75" class="dt-img-cover"></a>
                </div>
                <div class="aui-col-xs-4">
                  <a href="{$t[linkurl]}"><img src="{$images[1]}" height="75" class="dt-img-cover"></a>
                </div>
                <div class="aui-col-xs-4">
                  <a href="{$t[linkurl]}"><img src="{$images[2]}" height="75" class="dt-img-cover"></a>
                </div>
              </div>
            </div>
          </li>
		  {/if}
			{if $length == 1}
          <li class="aui-list-item">
            <div class="aui-media-list-item-inner">
              <div class="aui-list-item-inner">
                <div class="aui-list-item-title aui-ellipsis-2" style="height:2.45rem"><a href="{$t[linkurl]}">{$t[title]}...</a></div>
                <div class="aui-list-item-text">
                  <div><span>国内资讯</span><span class="aui-margin-l-10">156<i class="aui-iconfont aui-icon-comment aui-margin-l-5"></i></span></div>
                </div>
              </div>
              <div class="aui-list-item-media" style="width: 35%; !important;">
                <a href="{$t[linkurl]}"><img src="{$images[0]}" height="75" class="dt-img-cover"></a>
              </div>
            </div>
          </li>
		  {/if}
		{/loop}
				{/loop}
          
        </ul>

效果图：

css 没提供自己修改，只提供功能了 ，

注意：

前提是需要修改 /include/tag.func.php

在我的博客里有修改教程

https://blog.csdn.net/weixin_42694072/article/details/83784916