Lumen 的路由不能嵌套这个问题你们是如何接受的？

// routes.php

$app->group(['prefix'=>'api',], function () use ($app){

    $app->group(['prefix'=>'v2',], function () use ($app) {
        $app->get('/test', function () use ($app) {
            return $app->version();
        });
    });

    $app->get('/v1', function () use ($app) {
        return $app->version();
    });
});Copy

# document root
php artisan --version
Laravel Framework version Lumen (5.3.1) (Laravel Components 5.3.*)

cd public
php -S 127.0.0.1:3000 index.phpCopy

get http://127.0.0.1:3000/api/v1 
Lumen (5.3.1) (Laravel Components 5.3.*)
get http://127.0.0.1:3000/api/v2/test
404 NotFoundHttpException in RoutesRequests.php line 461:Copy

//bootstrap/app.php line 93-98
$app->group(['namespace' => 'App\Http\Controllers'], function ($app) {
    require __DIR__.'/../app/Http/routes.php';
});

//routes.php

$app->group(['prefix' => 'api/v2', 'namespace' => 'App\Http\Controllers'], function () use ($app) {
    $app->get('test', 'Test\ExampleController@index');
});Copy