public function __construct(array $values = []){    parent::__construct($values);    $userSettings = isset($values['settings']) ? $values['settings'] : [];    $this->registerDefaultServices($userSettings);}private function registerDefaultServices($userSettings){    $defaultSettings = $this->defaultSettings;    /**     * This service MUST return an array or an     * instance of \ArrayAccess.     *     * @return array|\ArrayAccess     */    $this['settings'] = function () use ($userSettings, $defaultSettings) {        return new Collection(array_merge($defaultSettings, $userSettings));    };    if (!isset($this['environment'])) {        /**         * This service MUST return a shared instance         * of \Slim\Interfaces\Http\EnvironmentInterface.         *         * @return EnvironmentInterface         */        $this['environment'] = function () {            return new Environment($_SERVER);        };    }    if (!isset($this['request'])) {        /**         * PSR-7 Request object         *         * @param Container $c         *         * @return ServerRequestInterface         */        $this['request'] = function ($c) {            return Request::createFromEnvironment($c->get('environment'));        };    }    if (!isset($this['response'])) {        /**         * PSR-7 Response object         *         * @param Container $c         *         * @return ResponseInterface         */        $this['response'] = function ($c) {            $headers = new Headers(['Content-Type' => 'text/html; charset=UTF-8']);            $response = new Response(200, $headers);            return $response->withProtocolVersion($c->get('settings')['httpVersion']);        };    }    if (!isset($this['router'])) {        /**         * This service MUST return a SHARED instance         * of \Slim\Interfaces\RouterInterface.         *         * @return RouterInterface         */        $this['router'] = function () {            return new Router;        };    }    if (!isset($this['foundHandler'])) {        /**         * This service MUST return a SHARED instance         * of \Slim\Interfaces\InvocationStrategyInterface.         *         * @return InvocationStrategyInterface         */        $this['foundHandler'] = function () {            return new RequestResponse;        };    }    if (!isset($this['errorHandler'])) {        /**         * This service MUST return a callable         * that accepts three arguments:         *         * 1. Instance of \Psr\Http\Message\ServerRequestInterface         * 2. Instance of \Psr\Http\Message\ResponseInterface         * 3. Instance of \Exception         *         * The callable MUST return an instance of         * \Psr\Http\Message\ResponseInterface.         *         * @param Container $c         *         * @return callable         */        $this['errorHandler'] = function ($c) {            return new Error($c->get('settings')['displayErrorDetails']);        };    }    if (!isset($this['notFoundHandler'])) {        /**         * This service MUST return a callable         * that accepts two arguments:         *         * 1. Instance of \Psr\Http\Message\ServerRequestInterface         * 2. Instance of \Psr\Http\Message\ResponseInterface         *         * The callable MUST return an instance of         * \Psr\Http\Message\ResponseInterface.         *         * @return callable         */        $this['notFoundHandler'] = function () {            return new NotFound;        };    }    if (!isset($this['notAllowedHandler'])) {        /**         * This service MUST return a callable         * that accepts three arguments:         *         * 1. Instance of \Psr\Http\Message\ServerRequestInterface         * 2. Instance of \Psr\Http\Message\ResponseInterface         * 3. Array of allowed HTTP methods         *         * The callable MUST return an instance of         * \Psr\Http\Message\ResponseInterface.         *         * @return callable         */        $this['notAllowedHandler'] = function () {            return new NotAllowed;        };    }    if (!isset($this['callableResolver'])) {        /**         * Instance of \Slim\Interfaces\CallableResolverInterface         *         * @param Container $c         *         * @return CallableResolverInterface         */        $this['callableResolver'] = function ($c) {            return new CallableResolver($c);        };    }}

　　會看到這段代碼就是初始化container中的router key，以后的route都加到這個里面就好了。

<strong> $this['router'] = function () { 　　return new Router; };<br />　<br />　</strong> 只是能不加入自己的Key呢？<strong><br /></strong>

　　第一次寫，就先這樣吧。

?