如何在控制器Laravel中获取Car_type、标记和模型？

use App\Car;
use App\CarType;
use App\Tag;

class YourController extends Controller
{
    protected $carType;
    protected $tag;
    protected $car;

    public function __construct(CarType $carType, Tag $tag, Car $car)
    {
        $this->carType = $carType;
        $this->tag = $tag;
        $this->car = $car;
    }

    // 其他方法...
}

public function getAllCarTypes()
{
    $carTypes = $this->carType->all();
    // 处理获取到的数据...
}

public function getAllTags()
{
    $tags = $this->tag->all();
    // 处理获取到的数据...
}

public function getCarById($id)
{
    $car = $this->car->find($id);
    // 处理获取到的数据...
}