在开发工具中，白屏时提示

代码：

<swiper bindchange="onChange" indicator-dots="true" autoplay="true" circular interval="5000" duration="200"

            class="ads_banner1" style="{{list[bannerIndex].style}}">

            <swiper-item class="ads_banner1 pos" wx:for="{{list}}" wx:key="unique" style="{{item.style}}">

                <view class="pos ads_banner1" style="{{item.style}}">

                    <image wx:if="{{item.path}}" bindtap="openPage" data-url="{{item.url}}" class="ads_banner1" style="{{item.style}}"

                        src="{{item.path}}" lazy-load="true"></image>

                    <view wx:if="{{item.isad == 1}}" class="ggLable">广告</view>

                </view>

            </swiper-item>

        </swiper>