uni-app 广告问题 广告覆盖自己写的模态框 【代码已贴出】

<!-- 广告提示模态框-->  

         <cover-view class="cu-modal" :class="showAdModal?'show':''">  
            <view class="cu-dialog">  
                <view class="cu-bar bg-white justify-end">  
                    <!-- <view class="content">Modal标题</view> -->  
                    <view class="action" @tap="cancel">  
                        <text class="cuIcon-close text-red"></text>  
                    </view>  
                </view>  
                <view class="padding-xl  bg-white ">  
                        122  
                </view>  
                <view class="cu-bar bg-white justify-end">  
                    <view class="action">  
                        <button class="cu-btn line-green text-green" @tap="cancel">取消</button>  
                        <button class="cu-btn bg-green margin-left" @tap="showAd">确定</button>  
                    </view>  
                </view>  
            </view>  
         </cover-view>

覆盖图

广告被覆盖到了最前面模态框被盖住了

把view标签换成cover-view也解决不了