fix:修复视频课节移除未重置sort导致移动失效的问题

src/modules/course-manage/video-course/AddVideoCourse.jsx

@@ -2,7 +2,7 @@
  * @Author: 吴文洁
  * @Author: 吴文洁
  * @Date: 2020-08-05 10:07:47
  * @Date: 2020-08-05 10:07:47
  * @LastEditors: yuananting
  * @LastEditors: yuananting
- * @LastEditTime: 2021-07-09 18:10:37
+ * @LastEditTime: 2021-07-12 09:47:51
  * @Description: 线上课新增/编辑页
  * @Description: 线上课新增/编辑页
  * @Copyright: 杭州杰竞科技有限公司 版权所有
  * @Copyright: 杭州杰竞科技有限公司 版权所有
  */
  */
@@ -625,6 +625,9 @@ class AddVideoCourse extends React.Component {
     let _courseChapterList = courseChapterList.filter((item,index) => {
     let _courseChapterList = courseChapterList.filter((item,index) => {
         return item.resourceId !== chapterId
         return item.resourceId !== chapterId
     })
     })
+    _courseChapterList.map((item, index) => {
+      item.sort = index
+    })
     this.setState({
     this.setState({
       courseChapterList :_courseChapterList
       courseChapterList :_courseChapterList
     })
     })