修改

src/components/course/class-form.vue

@@ -110,7 +110,7 @@
         </div>
         <div class="row wrap">
           <div class="col-6">
-            <template v-if="saveObj.ClassId>0">
+            <template v-if="objOption.ClassId>0">
               <q-input filled v-model="objOption.OpenTime" class="col-6 q-pr-lg q-pb-lg" mask="date" label="开始报名时间">
                 <template v-slot:append>
                   <q-icon name="event" class="cursor-pointer">