- 当前 Bug 的表现（可附上截图）

- 预期表现

层级显示BUG

- 复现路径

- 提供一个最简复现 Demo

<map id="map" class="map" scale="12" longitude="{{longitude}}" latitude="{{latitude}}" bindmarkertap="markertap" show-location="true" markers="{{markers}}">

<!-- 点位选择 -->

<cover-view class="controls" animation="{{animation}}">

<cover-view class='points'>

<cover-view class='pointmain' style='width:{{linewidth}};'>

<repeat wx:for="{{markers}}" wx:for-item="item" wx:key="key">

<cover-view class="pointitems {{selected==item.content?'cur':''}}" style='width:{{width}};' @tap='markertap' data-point="{{item}}">{{item.content}}</cover-view>

</repeat>

</cover-view>

</cover-view>

</cover-view>

<!-- title -->

<cover-view class='title' @tap='showpoint'>

<cover-view style='line-height:40px'>点击选择路段</cover-view>

<cover-image class="img" wx:if="{{showpointicon}}" src='{{uppngurl}}'/>

<cover-image class="img" wx:else src='{{downpngurl}}'/>

</cover-view>

</map>