/**
  * Display a listing of the resource.
  *
  * @return Response
  */
 public function index()
 {
     //获得数量
     $g = Good::count();
     $o = Order::count();
     $u = User::count();
     $c = Comment::count();
     return view('admin.index.index', ['g' => $g, 'o' => $o, 'u' => $u, 'c' => $c]);
 }