fix: 课程考核标准的展示

learnOnline/pages/learnSystem/courseContent/courseAssess/courseAssess.wxml

 <template name="courseAssess">
   <view class="course-assess">
     <view class="title">最终成绩：{{ (item.assess.score && item.assess.score + '分') || '暂无' }}</view>
+    <block wx:if="{{ item.assess.course_check.length }}">
     <view class="topic">
       <view class="line"></view>
       <view class="tit">课程考核标准</view>
@@ -36,6 +37,7 @@
       <view class='h2'>结业大作业：总分100分（占科目总成绩的40%）</view>
       <view class='p'>结业大作业满分为100分，以助教老师给分为准。</view> -->
     </view>
+    </block>
     <view class="topic">
       <view class="line"></view>
       <view class="tit">学习进度及成绩</view>