fix:修改bug

src/modules/teacher/data/exam/components/ExamInfo.vue

@@ -50,6 +50,8 @@ export default {
           : hourHtml + minuteHtml
         : minuteHtml
     }
+  },
+  mounted() {
   }
 }
 </script>

src/modules/teacher/data/exam/components/Submission.vue

@@ -11,21 +11,21 @@
       <el-col :span="8">
         <div class="title">最早交卷</div>
         <div>
-          <span class="num">{{ dataInfo.submit_info.first }}</span
+          <span class="num">{{ $route.query.type == 'chapter' ? '-' : dataInfo.submit_info.first }}</span
           ><span class="fen">分钟</span>
         </div>
       </el-col>
       <el-col :span="8">
         <div class="title">最迟交卷</div>
         <div>
-          <span class="num">{{ dataInfo.submit_info.last }}</span
+          <span class="num">{{ $route.query.type == 'chapter' ? '-' : dataInfo.submit_info.last }}</span
           ><span class="fen">分钟</span>
         </div>
       </el-col>
       <el-col :span="8">
         <div class="title" style="white-space: nowrap">平均交卷时长</div>
         <div>
-          <span class="num">{{ dataInfo.submit_info.average }}</span
+          <span class="num">{{ $route.query.type == 'chapter' ? '-' : dataInfo.submit_info.average }}</span
           ><span class="fen">分钟</span>
         </div>
       </el-col>

src/modules/teacher/data/exam/components/TopicDataChart.vue

 <template>
-  <el-card class="box-card" style="height: 300px">
+  <el-card class="box-card" style="height: 300px;position: relative;">
     <div slot="header" class="clearfix">
       <div slot="header" style="display: flex; align-items: center">
         <h1 style="font-size: 16px">选项分布</h1>
       </div>
     </div>
-    <div style="height: 230px; width: 90%; margin: 0 auto" v-show="isData.length">
+    <div style="height: 230px; width: 90%; margin: 0 auto">
       <div id="main" style="width: 100%; height: 90%"></div>
     </div>
-    <div style="text-align: center;font-size:20px;margin-top:70px" v-show="!isData.length">暂无</div>
+    <div style="line-height:200px;background:#fff;width:100%;height:230px;position: absolute;top:80px;left:0;text-align: center;font-size:20px;" v-show="!isData.length">暂无</div>
   </el-card>
 </template>
 

src/modules/teacher/data/exam/views/ExamData.vue

@@ -104,9 +104,13 @@ export default {
         type: this.$route.query.type,
         class_id: this.value
       }
-      getExamDataInfo(params).then(res => {
+      getExamDataInfo(params)
+        .then(res => {
           this.dataInfo = res.data
         })
+        .catch(() => {
+          this.dataInfo = {}
+        })
     }
   }
 }