1、修改程序 /public/zhiwu/common/template/index.jtbc文件

public function detail(Request $req, Response $res)
      //
      $fatherCategory = 0;
      $fatherCategory = $this -> category -> getRecordById($rsCategory, 'father_id') ?: $rsCategory;
      $variables = [
      'category' => $rsCategory,
      'Fcategory' => $fatherCategory,
      ];
      //
     //$variables = ['category' => $rsCategory];屏蔽

2、模板调用
获取ID：{$[Fcategory]}
调用分类名：{$=$render('index.category-detail', $fetch(['genre' => 'universal/category', 'where' => ['genre' => '{$>this.genre}', 'id' => {$[Fcategory]}]]))}