医生信息没有不显示

src/components/course/course-harvest.vue

 <template>
-  <div class="course-harvest-wrapper">
+  <div v-if="harvest.length > 0" class="course-harvest-wrapper">
     <CommonTitle title="学习收获"></CommonTitle>
     <ul class="list-wrapper">
       <li class="item" v-for="(item, index) in harvest" :key="index">

src/components/course/course-intro.vue

 <template>
-  <div class="course-intro-wrapper">
+  <div v-if="intro" class="course-intro-wrapper">
     <CommonTitle></CommonTitle>
     <div class="body">
       <p class="content" :class="{'ellipsis': isUp}">{{ intro }}</p>

src/components/course/course-teacher.vue

 <template>
-  <div class="course-teacher-wrapper">
+  <div v-if="doctorList.length > 0" class="course-teacher-wrapper">
     <div class="basic-title">讲师介绍</div>
     <div class="leader-info" v-for="(item,index) in doctorList" :key="index">
       <img :src="item.app_image_url" alt="头像" @error="onAvatarError" />

src/views/course-detail.vue

@@ -150,11 +150,11 @@ export default {
     if (token && !info.id) {
       this.$store.dispatch('getUserInfo');
     }
-    // this.projectId = sessionStorage.getItem('projectId');
-    // if (!this.projectId) {
-    //   this.$router.replace('/not-found');
-    //   return;
-    // }
+    this.projectId = sessionStorage.getItem('projectId');
+    if (!this.projectId) {
+      this.$router.replace('/not-found');
+      return;
+    }
     this.getCourseInfo();
     this.getCourseQas();
     const { height } = this.$el.querySelector('.video-box').getBoundingClientRect();