问题:创建组件，使用带名字的slot，页面调用组件使用slot不显示

源码：

组件xml

<view class="p-item br24" style="{{style}}">
    <slot name="right" wx:if="{{!custBottom}}"></slot>
    <view class="right-bottom" wx:else>
      <view class="flex_row_st numchange">
        <text class="minus">-</text>
        <input type="number" class="num-input" value="100"></input>
        <text class="add">+</text>
      </view>
      <button size="mini" class="primary-color btn" bindtap="DoSignOK">添加</button>
    </view>
  </view>
</view>

JS:根据条件判断是否使用slot

Component({
  properties: {
    custBottom: {type: Boolean, value: false}
  },
 
  data: {},
  lifetimes: {
    attached() {
      console.log(">>> 被页面调用", this.data)
    }
  },
  methods: {
  }
});

 页面调用

 <view>
    <productCard custBottom="{{true}}">
      <view slot="right">TEST</view>
    </productCard>

    <productCard></productCard>

  </view>

解决：

组件加上多slot配置，置为true

options: {
  multipleSlots: true
},

 修改：

Component({
  properties: {
    custBottom: {type: Boolean, value: false}
  },
options: {
  multipleSlots: true //增加此配置slot
},
 
  data: {},
  lifetimes: {
    attached() {
      console.log(">>> 被页面调用", this.data)
    }
  },
  methods: {
  }
});

效果：slot出来了。