fix(form): 修复错误消息处理逻辑

jnpf-java-boot/jnpf-web/src/views/example/proorder/index.vue

@@ -357,7 +357,7 @@ export default {
           this.$message.success('删除成功');
           this.initData();
         }).catch((err) => {
-          const msg = err?.response?.data?.message || err?.message || '删除失败';
+          const msg = err && err.response && err.response.data && err.response.data.message || (err && err.message) || '删除失败';
           this.$message.error(msg);
         });
       }).catch(() => {