src/Middleware.php
static function register(string $name, callable $callback) {
        if (isset(self::$_middleware[$name]))
            Console::warning("Overwriting middleware callback \"$name\".");
        self::$_middleware[$name] = $callback;
    }
static function register(string $name, callable $callback) {
        if (isset(self::$_middleware[$name]))
            Console::warning("Overwriting middleware callback \"$name\".");
        self::$_middleware[$name] = $callback;
    }
注册中间件

@param string $name
@param callable $callback