修改

src/controller/car.controller.ts

@@ -24,11 +24,13 @@ export class CarController extends BaseController {
   async query(@Query() filter) {
     const result = await this.service.queryList(filter);
     const data = [];
-    for (const i of result[0].data) {
-      const newData = new QVO_car(i);
-      data.push(newData);
+    if (result[0].data.length > 0) {
+      for (const i of result[0].data) {
+        const newData = new QVO_car(i);
+        data.push(newData);
+      }
     }
-    const total = result[0].total;
+    const total = result[0].total || 0;
     return { data, total };
   }