fix:章预览修复BUG

src/components/videoPreview/index.vue

@@ -15,8 +15,8 @@
         </div>
       </div>
       <div>
-        <div id="player"></div>
-        <div id="playerzb"></div>
+        <div id="player" v-if="listData.sectionType === 1"></div>
+        <div id="playerzb" v-if="listData.sectionType === 2"></div>
       </div>
       <span slot="footer" class="dialog-footer">
         <el-button @click="clears">取 消</el-button>