订单填写特需弹框页，点击取消按钮和叉叉都无法关闭弹框

src/views/ecw/order/components/specialNeeds.vue

 <template>
 <div>
-  <el-dialog :before-close="()=>{
-    clearFrom();$emit('update:show',false)
+  <el-dialog :before-close="()=>{$emit('update:show',false)
   }" center width="80%"  :visible.sync="show">
     <div class="content">
       <el-form label-width="180px" label-position="left">
@@ -21,7 +20,7 @@
     </div>
     <div  slot="footer" class="dialog-footer">
       <el-button @click="submit">提交</el-button>
-      <el-button @click="clearFrom();$emit('update:show',false)">取消</el-button>
+      <el-button @click="$emit('update:show',false)">取消</el-button>
     </div>
   </el-dialog>
 </div>