updates

src/modules/dashboard/dataview/views/List.vue

@@ -80,7 +80,7 @@
             size="mini"
             plain
             @click="handleGiven(row)"
-            v-if="row.create_certificate_flag === false"
+            v-if="row.create_certificate_flag === true"
             >颁发证书</el-button
           >
         </template>
@@ -142,7 +142,6 @@ export default {
             align: 'center',
             prop: 'expiration_time'
           },
-          { label: '邮箱', align: 'center', prop: 'email' },
           { label: '重修次数', align: 'center', prop: 'study_times' },
           { label: '当前学习进度', align: 'center', prop: 'progress' },
           { label: '考试成绩', align: 'center', prop: 'score' },