public function store(BikeRequest $request, User $user)
{
$bike = new Bike();
$bike->fill($request->all());
$bike->save();
$log = new Log();
$log->user_id = $user->id;
$log->log = "新建单车" . $bike->id;
$log->save();
return redirect()->action('BikeController@index');
}
