默认插槽

//   默认插槽

<Category title="美食">

    <img src="https://oss.aolb.top/public/uploads/goods/1645257691_95884.jpg" alt="">

</Category>

<div class="cateogry">

    <h3>{{title}}分类</h3>

    <!-- 定义插槽 -->

    <slot>这里填写默认值</slot>

</div>