tp5.2如何使用$this->assign()

$this->assign()将后台数据传递到前台页面中tp5.1以前$this->assign()用法

user think\Controller;
class Index extends Controller{
         public function index(){
               $this->assign('name',$data);
              
               $this->fetch('index');
         }
}

tp5.2之后$this->assgin()用法

use think\ViewController;
class Index extends ViewController{
    public function index()
    {
        $this->assign(['name'=>$data]);
        return $this->fetch('/index');
         //或是使用助手函数 不需要继承ViewController
         return view()->assign(['name'=>$data]);
    }
{