前端删除的报错修改

src/views/product/category/index.vue

@@ -244,7 +244,7 @@ export default {
   watch: {
     'form.parentId': {
       handler(val){
-        if (val !== undefined && val !== 0){
+        if (val !== undefined && val !== 0 && val !== null){
           parentCommonElement(val).then(response => {
             this.attributeInfoList = response.data.attributeInfoList;
             this.attributeGroupList = response.data.attributeGroupList;
@@ -342,7 +342,7 @@ export default {
     handleUpdate(row) {
       this.reset();
       this.getTreeselect();
-      if (row != null) {
+      if (row != null && row.id) {
         this.form.parentId = row.parentId;
       }
       getCategory(row.id).then(response => {