微信小程序多列选择器

<picker mode="multiSelector" bindchange="bindMultiPickerChange2" bindcolumnchange="bindMultiPickerColumnChange2" value="{{multiIndex}}" range="{{objectMultiArray}}" range-key="{{'name'}}">
   <view class="picker">
      当前选择：{{objectMultiArray[0][multiIndex2[0]].name}}，{{objectMultiArray[1][multiIndex2[1]].name}}
   </view>
</picker>
<picker mode="multiSelector" bin