推荐课程默认展示三个

src/modules/home/components/RecommendCourse.vue

@@ -27,7 +27,12 @@ const handleClickItem = (item: any) => {
       </div>
     </template>
     <div class="course_list">
-      <div class="list_item" v-for="(item, index) in courseList.list" :key="index" @click="handleClickItem(item)">
+      <div
+        class="list_item"
+        v-for="(item, index) in courseList.list.slice(0, 3)"
+        :key="index"
+        @click="handleClickItem(item)"
+      >
         <img :src="item.cover" class="item_img" />
         <div class="item_right">
           <div class="right_tit">{{ item.name }}</div>