laravel 5.5本地化网址

I'm using Laravel locale, need to show language sign at the URL, I created a route group like so, and listed my routes inside the group

Route::group(['prefix' =>  App::getLocale()], function(){
 Route::get('login','Hostato\Admin\Controllers\Auth\LoginController@showLoginForm')
  ->name('login');
});

but it always show 'localhost:8000/en/logoin', although if i render at the view

{{ App::getLocale() }} 

it shows the correct chosen language sign

at the route group prefix do i need to use another way rather than ?

App::getLocale()

You should use parameter instead of hardcoding the setLocale() method call:

Route::group(['prefix' => '{lang}'], function() {

And then in middleware set locale:

public function handle($request, Closure $next)
{
    app()->setLocale($request->lang);
    return $next($request);
}