case-data/unpackage/dist/dev/mp-weixin/pages/certImg/certImg.wxml

<back-nav wx:if="{{a}}" class="data-v-f07c1461" u-i="f07c1461-0" bind:__l="__l" u-p="{{a}}"></back-nav><view class="imgbox data-v-f07c1461"><view class="box data-v-f07c1461"><u--image wx:if="{{b}}" class="data-v-f07c1461" u-i="f07c1461-1" bind:__l="__l" u-p="{{b}}"></u--image></view></view>