新增场次保存完毕后，返回到列表页

src/features/examwork/ActivityManagement/ActivityEdit.vue

@@ -2,7 +2,7 @@
   <div class="activity-edit">
     <div class="part-box-head">
       <div class="part-box-head-left">
-        <h1>{{ "新增" + "场次" }}</h1>
+        <h1>新增场次</h1>
       </div>
     </div>
 
@@ -269,6 +269,7 @@ export default {
         this.loading = true;
         await saveActivities(data);
         this.$notify({ title: "保存成功", type: "success" });
+        this.$router.back();
       } finally {
         this.loading = false;
       }