资料库视频封面添加

pages/_template/app/database/video.vue

@@ -45,7 +45,7 @@
               </div>
             </div>
             <div class="cover">
-              <video class="cover" :src="item.videoPreviewUrl"></video>
+              <video class="cover" :src="item.videoPreviewUrl" :poster="item.videoImage"></video>
               <span @click="onPlayer(item)"></span>
             </div>
           </div>

pages/_template/ross/database/video.vue

@@ -45,7 +45,7 @@
               </div>
             </div>
             <div class="cover">
-              <video class="cover" :src="item.videoPreviewUrl"></video>
+              <video class="cover" :src="item.videoPreviewUrl" :poster="item.videoImage"></video>
               <span @click="onPlayer(item)"></span>
             </div>
           </div>