修改style

src/modules/course/views/Index.vue

@@ -79,6 +79,8 @@ img {
   .item_img {
     width: 2.2rem;
     height: 1.4rem;
+    object-fit: cover;
+    border-radius: 0.1rem;
   }
   .item_right {
     margin-left: 0.21rem;

src/modules/home/components/RecommendCourse.vue

@@ -44,6 +44,8 @@ getRecommendCourse().then(res => {
     .item_img {
       width: 2.2rem;
       height: 1.4rem;
+      object-fit: cover;
+      border-radius: 0.1rem;
     }
     .item_right {
       margin-left: 0.21rem;

src/modules/home/components/Teacher.vue

@@ -65,6 +65,7 @@ getTeacherList().then(res => {
   height: 2.3rem;
   border: 1px solid #707070;
   border-radius: 0.1rem;
+  object-fit: cover;
 }
 .name {
   font-size: 0.24rem;