更新创建表单样式

src/components/schedule/scheduleModal.vue

 <template>
   <section>
-    <el-dialog title="新建待办事项" :visible.sync="diaVis" :modal-append-to-body="false">
+    <el-dialog title="新建待办事项" :visible.sync="diaVis" :modal-append-to-body="false" :before-close="handleClose">
       <ScheduleForm
        :model="model">
       </ScheduleForm>
@@ -47,6 +47,12 @@ export default {
       this.diaVis = true
     },
 
+    handleClose () {
+      Object.keys(this.model).forEach(item => {
+        this.model[item] = ''
+      })
+    },
+
     save () {
       requestAPI(Object.assign({}, api.saveNewSchedule, { method: 'POST' }), this.model)
         .then((res) => {