fix: 修复数据未加载完成,进入大作业页面出错的问题

client/src/modules/discuss/src/discuss.vue

@@ -66,12 +66,12 @@ export default {
   },
   methods: {
     loadAjax () {
-      const loading = this.$loading({ lock: true, text: '', spinner: '', background: 'rgba(255, 255, 255, 0.9)' })
+      // const loading = this.$loading({ lock: true, text: '', spinner: '', background: 'rgba(255, 255, 255, 0.9)' })
       api[this.params.request](this.params)
         .then(json => {
           this.discussList = json
         })
-        .catch(e => { this.$message.error(e.message) }).finally(() => { loading.close() })
+        .catch(e => { this.$message.error(e.message) }).finally(() => { /* loading.close() */ })
     },
     /**
      * 跳转到对应 问题详情页

client/src/pages/learn/courseDetail.vue

@@ -238,31 +238,7 @@ export default {
         isShow: false,
         chapterList: {
           currentChapterId: '11', // 当前章节id
-          course: [{
-            title: '第一章：测试章节',
-            isUp: true,
-            chapters: [
-              // { id: '11', time: '28:18', name: '1.1 现值（PV）和终值（FV）' },
-              { id: '12', time: '19:09', name: '1.2 测试课程' }
-            ]
-          }, {
-            title: '第二章：证券估值',
-            isUp: true,
-            chapters: [
-              // { id: '21', time: '27:49', name: '2.1 债券和股票的现金流贴现估值方法' },
-              // { id: '22', time: '16:04', name: '2.2 债券评级及债券协议' },
-              // { id: '23', time: '', name: '公司金融第二周测验' },
-              // { id: '24', time: '', name: '公司金融第二周作业' }
-            ]
-          }, {
-            title: '课程大作业',
-            isUp: true,
-            chapters: []
-          }, {
-            title: '课程资料',
-            isUp: true,
-            chapters: []
-          }]
+          course: []
         }
       }, {
         title: '课程讨论',