fix: bug

src/components/image-preview/video-preview.vue

@@ -1,8 +1,14 @@
 <template>
 	<view class="video-view-box" @click="showModel = true">
-		播放
-		<uv-overlay :show="showModel" opacity=".6" @click="showModel = false">
-			<view class="overlay-box">
+		<view class="img-box">
+			<image 
+				class="icon" 
+				src="@/static/images/course/play.png" 
+				style="width: 100%;height: 100%;"
+			></image>
+		</view>
+		<uv-overlay :show="showModel" opacity=".6" @click.stop="showModel = false">
+			<view class="overlay-box" @click.stop="showModel = false">
 				<video class="video-cont-center" v-if="showModel && fileUrlShow" :src="fileUrlShow" controls @error="playError" object-fit="contain"></video>
 			</view>
 		</uv-overlay>
@@ -86,7 +92,16 @@
 	.video-view-box{
 		width: 100%;
 		height: 100%;
-		background-color: #eee;
+		background-color: #fafafa !important;
+		position: relative;
+	}
+	.img-box{
+		position: absolute;
+		left: 50%;
+		top: 50%;
+		width: 100rpx;
+		height: 100rpx;
+		transform: translate(-50%, -50%);
 	}
 	.overlay-box .video-cont-center{
 		max-width: 100%;

src/pages/course/components/talkingItem.vue

@@ -543,7 +543,7 @@ const audioCacheObj = computed(() => storageStore.audioObj)
 					height: 269rpx;
 					border-radius: 15rpx;
 					overflow: hidden;
-					background-color: #eee;
+					background-color: #fafafa;
 					margin-bottom: 20rpx;
 				}
 			}

src/pages/course/study.vue

@@ -689,7 +689,7 @@ const finishQuestionNow = (data) => {
 	.then(res=> {
 		// common.msg('完成成功，开始获取评分维度数据！')
 		let _state = res.body.chatBody.processStat
-		if(_state = 'ER'){
+		if(_state === 'ER'){
 			common.msg('提交答案失败！')
 			return
 		}