diff --git a/packageB/train/video/videoDetail.vue b/packageB/train/video/videoDetail.vue
index 2b42d83..fea32f3 100644
--- a/packageB/train/video/videoDetail.vue
+++ b/packageB/train/video/videoDetail.vue
@@ -9,7 +9,9 @@
 			<view class="video-detail-container">
 			    <!-- 视频播放组件 -->
 			    <view class="video-wrapper">
-					<video id="myVideo" :src="videoInfo.currentUrl" :poster="trainVideoImgUrl+ videoInfo.cover" @seeked="onSeeked"
+					<video v-if="videoInfo && videoInfo.cover" id="myVideo" :src="videoInfo.currentUrl" :poster="trainVideoImgUrl+ videoInfo.cover" @seeked="onSeeked"
+					
+                preload="metadata"
 						 enable-danmu controls style="width: 100%;" @pause="onPause" @timeupdate="onTimeupdate" @ended="onEnded"></video>
 			    </view>
 			</view>