我自定义了一个新闻列表的组件，以下是部分代码 // component/news.js Component({   options: {     multipleSlots: true   },   /**    * 组件的属性列表    */   properties: {     list: {       type: Array,       value: []     },     showAuthor: {       type: Boolean,       value: true     },     showTime: {       type: Boolean,       value: false     },     showRead: {       type: Boolean,       value: false     },     showRank: {       type: Boolean,       value: false     }   },   /**    * 组件的初始数据    */   data: {     message: '这是一个新闻组件'   },   /**    * 组件的方法列表    */   methods: {     handleClick($event) {       this.triggerEvent('click', $event.currentTarget.dataset.id);     }   } }) 组件的wxml <!--component/news.wxml--> <view class="news">   <view     data-id="{{i.id}}"     class="news-item flex"     bindtap="handleClick"     wx:for="{{list}}"     wx:key="item"     wx:for-item="i">     <view class="news-bd">       <view class="news-info">         <view class="title">{{i.title}}</view>         <view class="metadata"> <!-- 这里 -->           <slot name="author"></slot> <slot name="time"></slot> <slot name="read"></slot>         </view>       </view>     </view>     <view class="news-ft">       <view class="thumb">         <image mode="aspectFit" src="{{i.src}}"></image>       </view>     </view>   </view> </view> 组件调用 <news-list list="{{news_list}}"> <view slot="author">{{}}</view> </news-list> <news-list list="{{news_list}}"> <view slot="time">{{}}</view> <view slot="read">{{}}</view> </news-list> 父组件如何从子组件获取到传值，然后进行绑定？