vif

src/views/baseData/thing/dialog.vue

 <template>
   <DefaultDialog :app='app'>
     <div slot="form" style="display: flex;height: 70vh;">
-      <div v-loading='loading' v-if="b64!=null" class="full">
+      <div v-loading='loading'  class="full">
         <img class="full" :src="b64" alt="正在连接摄像头...若长时间连接失败请刷新页面或者检查摄像头设备是否连接,SDK是否正确安装!" srcset="">
       </div>
     </div>