Laravel邮件到传递了用户模型参数的变量

namespace App\Mail;

use Illuminate\Bus\Queueable;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Mail\Mailable;
use Illuminate\Queue\SerializesModels;
use App\Models\User;

class WelcomeEmail extends Mailable
{
    use Queueable, SerializesModels;

    public $user;

    /**
     * Create a new message instance.
     *
     * @param  User  $user
     * @return void
     */
    public function __construct(User $user)
    {
        $this->user = $user;
    }

    /**
     * Build the message.
     *
     * @return $this
     */
    public function build()
    {
        return $this->view('emails.welcome')
                    ->subject('Welcome to our website')
                    ->with([
                        'name' => $this->user->name,
                        'email' => $this->user->email,
                    ]);
    }
}

use App\Mail\WelcomeEmail;
use Illuminate\Support\Facades\Mail;

$user = User::find(1);
Mail::to($user->email)->send(new WelcomeEmail($user));