支持不选择父级菜单情况

src/views/setting/region/index.vue

@@ -278,6 +278,9 @@ const submitHandler = async params => {
 	formOptions.value.formConfig.submitLoading = true
 	try {
 		params.id = activeData.value.id ? activeData.value.id : null
+		if (!params.pid) {
+			params.pid = 0
+		}
 		await region.regionAddOrEditSaveApi(params)
 		ElMessage.success(`${isCreate.value ? '新增' : '修改'}成功~`)
 		visible.value = false