style:视频课创建人样式优化

src/modules/course-manage/video-course/components/VideoCourseList.jsx

 /*
  * @Author: 吴文洁
  * @Date: 2020-08-05 10:12:45
- * @LastEditors: zhangleyuan
- * @LastEditTime: 2021-01-12 10:58:47
+ * @LastEditors: wufan
+ * @LastEditTime: 2021-01-12 20:11:09
  * @Description: 视频课-列表模块
  * @Copyright: 杭州杰竞科技有限公司 版权所有
  */
@@ -95,7 +95,16 @@ class VideoCourseList extends React.Component {
       {
         title: '创建人',
         key: 'createName',
-        dataIndex: 'createName'
+        dataIndex: 'createName',
+        render: (val) => {
+          return (
+            <Tooltip title={val}>
+              <div>
+                {val.length > 4 ? `${val.slice(0,4)}...` : val}
+              </div>
+            </Tooltip>
+          )
+        }
       },
       {
         title: <span>