优化

mp-admin/src/main/java/com/qs/mp/web/controller/api/user/UserExchangeController.java

@@ -247,6 +247,7 @@ public class UserExchangeController extends BaseApiController {
   public AjaxResult listCategory(@RequestBody JSONObject param) {
     List<GoodsCategory> categoryList = goodsCategoryService.list(
         new LambdaQueryWrapper<GoodsCategory>()
+                .eq(GoodsCategory::getParentId, 0)
             .eq(GoodsCategory::getIsShow, 1).orderByDesc(GoodsCategory::getSort));
     return AjaxResult.success(categoryList);
   }