资源详情加载问题处理

src/views/resourceDetails/components/VideoDetails.vue

@@ -14,7 +14,7 @@
 						<div v-if="isDocumentFile(resSrc)" style="width: 100%; height: 100%">
 							<FilePreviewer v-if="resSrc" :fileUrl="fileSrc(resSrc)" :fileName="resName" :fileType="fileType" />
 						</div>
-						<div class="imgBox" v-if="unknownFile">
+						<div class="imgBox" v-if="itemData.id && unknownFile">
 							<a-image height="100%" :src="unknownFile" :preview="false" />
 						</div>
 					</div>