<view style="border-radius: 8px; box-shadow: 0 2px 9px 0 rgba(32,40,50,0.12);overflow: hidden;">

        <map id="myMap" class="my-map" style="width: 100%;" scale="{{20}}" latitude="{{latitude}}" longitude="{{longitude}}"

          bindmarkertap="toShow" bindregionchange="bindregionchange" wx:if="{{choose == '1'}}" markers="{{markers}}"

          covers="{{covers}}" show-location>

        </map>

 </view>

圆角在安卓上显示正常, ios端显示还是直角, ios机型iPhone8,iPhoneX,iphone12