递归组件概念:在组件中使用组件自身 ~~~ //直接在List.vue组件中使用自身 <div v-for="(item,index) of categoryList" :key="index"> <div class="item"> <span class="icon"></span> <span>{{item.title}}</span> </div> //组件中套组件 <div v-if="item.children" class="item-children"> <detail-list :categoryList="item.children"></detail-list> </div> </div> ~~~