laravel_sketch/app/Console/Commands/TestCommand.php

<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use Nerd\CartesianProduct\CartesianProduct;

class TestCommand extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'test {cmd?}';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = 'Command description';

    public function handle()
    {
        $cmd = $this->argument('cmd');
        $args = $this->arguments();
        unset($args['command'], $args['cmd']);
        $params = array_values($args);

        if (empty($cmd)) {
            echo 'Nothing to do...';
        } else {
            if (method_exists($this, $cmd)) {
                call_user_func_array([$this, $cmd], $params);
            } else {
                echo 'cmd not exists';
            }
        }
        return;
    }

    public function time()
    {
        $cartesianProduct = new CartesianProduct();
        $cartesianProduct->appendSet(["红色", "白色"]);
        dump($cartesianProduct->compute());
    }
}