style:默认图替换

src/modules/course-manage/graphics-course/components/GraphicsCourseList.less

@@ -51,12 +51,11 @@
     display: flex;
 
     .course-cover {
-      min-width: 97px;
-      max-width: 97px;
+      width: 97px;
       height: 50px;
       border-radius: 2px;
       margin-right: 8px;
-      background-color: #666;
+      object-fit: contain;
     }
 
     .course-name {

src/modules/course-manage/offline-course/AddOfflineCourse.jsx

@@ -2,7 +2,7 @@
  * @Author: 吴文洁
  * @Date: 2020-08-05 10:07:47
  * @LastEditors: wufan
- * @LastEditTime: 2021-05-25 20:00:18
+ * @LastEditTime: 2021-05-27 19:25:48
  * @Description: 线下课新增/编辑页
  * @Copyright: 杭州杰竞科技有限公司 版权所有
  */
@@ -41,7 +41,7 @@ import MultipleDatePicker from '@/components/MultipleDatePicker';
 import './AddOfflineCourse.less';
 
 const { Option } = Select;
-const defaultCoverUrl = 'https://image.xiaomaiketang.com/xm/YNfi45JwFA.png';
+const defaultCoverUrl = 'https://image.xiaomaiketang.com/xm/pxbWKsYA87.png';
 let cutFlag = false;
 const unitList = [
   { key: 'HOUR', value: '小时' },

src/modules/course-manage/offline-course/AddOfflineCourse.less

@@ -177,7 +177,6 @@
           width: 100%;
           height: 100%;
           object-fit: contain;
-          border: 1px solid #E8e8e8;
         }
       }
   

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

@@ -56,7 +56,6 @@
       height: 50px;
       border-radius: 2px;
       margin-right: 8px;
-      background-color: #666;
     }
 
     .course-name {

src/modules/plan-manage/AddPlan.jsx

@@ -2,7 +2,7 @@
  * @Author: zhangleyuan
  * @Date: 2021-02-20 16:13:39
  * @LastEditors: wufan
- * @LastEditTime: 2021-05-24 11:32:32
+ * @LastEditTime: 2021-05-27 19:36:12
  * @Description: 描述一下
  * @@Copyrigh: © 2020 杭州杰竞科技有限公司 版权所有
  */
@@ -17,7 +17,7 @@ import PlanService from '@/domains/plan-domain/planService'
 import User from '@/common/js/user';
 import _ from "underscore";
 import './AddPlan.less'
-const defaultCover = 'https://image.xiaomaiketang.com/xm/YNfi45JwFA.png';
+const defaultCover = 'https://image.xiaomaiketang.com/xm/rEAetaTEh3.png';
 const defaultBasicData = {
     planName:"",
     coverUrl: defaultCover,

src/modules/plan-manage/components/BasicInfo.less

@@ -40,7 +40,6 @@
             width: 100%;
             height: 100%;
             object-fit: contain;
-            border: 1px solid #E8e8e8;
           }
         }
         .opt-btns{