<picker-view class="picker-view" indicator-class="picker-view-selected-three" :value="pickerIndex"
	@change="pickerViewChangeThree">
	<picker-view-column>
        	<view class="picker-item" v-for="(item, index) in pickerList" :key="index">{{item.label}}</view>
	</picker-view-column>
	<picker-view-column>
		<view class="picker-item" v-for="(item, index) in pickerList[pickerIndex[0]].children" :key="index">
			{{item.label}}
		</view>
	</picker-view-column>
	<picker-view-column>
		<view class="picker-item" v-for="(item, index) in pickerList[pickerIndex[0]].children[pickerIndex[1]].children"
			:key="index">{{item.label}}</view>
	</picker-view-column>
</picker-view>

错位了，真机运行时出现的问题，开发者工具上没有问题