Merge branch 'pre' into 'master'

Pre

See merge request !4

src/components/map/index.vue

@@ -556,6 +556,8 @@
               classID:this.classID,
               courseID:this.course_id.toString()
             });
+          }).catch(error => {
+            Toast('获取数据失败')
           })
         }else{
           Toast('课程还未开始哦')