选课中心弹窗优化

pages/course/index.vue

@@ -356,6 +356,7 @@
       mode="bottom"
       border-radius="32"
       :mask-close-able="false"
+      :closeable="!!selObj.bId"
     >
       <view class="popuBox">
         <view class="popuBox-title">选择分类</view>
@@ -659,7 +660,7 @@ export default {
   computed: { ...mapGetters(["userInfo"]) },
 };
 </script>
-<style >
+<style>
 ::-webkit-scrollbar {
   width: 0;
   height: 0;