$rs = Db::name('Course')->alias('a')
->join('__TEACHER__ b', 'a.teacher = b.id', 'LEFT')
->where($map)
->field('a.*,b.name')
->paginate($listRows, false, ['query' => $request])->each(function($item, $key) {
$item['_child'] = $this->getCourseListAlreadyDetail($item['id']);
return $item;
});页面报错最佳答案
