打开b2\Modules\Templates\Modules\Posts.php，
搜索以下代码
<div class="post-module-thumb" style="padding-top:'.$size['ratio'].'%">这行代码的下面放入以下代码
<a '.$open.' href="'.$v['link'].'" rel="nofollow" class="thumb-link">
<div class="mrxu-item-xu-w" style="background-image: url(data:image/svg+xml;base64,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);"></div>
