wxml
<view class="special">
    <scroll-view scroll-x="true" bindscroll="bindscroll">
        <view class="option flex">
            <block wx:for="{{lista}}">
                <view class="box">
                    <image></image>
                    <view>{{item.name}}</view>
                </view>
            </block>
        </view>
    </scroll-view>
    <view class="scrollbat">
        <view class="present" style="left:{{around}}%"></view>
    </view>
</view>

js
　　data{

｝