wanyue_yunying_backend/app/command/CancelOrderCommand.php

<?php

namespace app\command;

use Symfony\Component\Console\Command\Command;
use Symfony\Component\Console\Input\InputInterface;
use Symfony\Component\Console\Output\OutputInterface;

class CancelOrderCommand extends Command
{
    protected static $defaultName = 'cancel:order';
    protected static $defaultDescription = '取消订单';

    /**
     * @param InputInterface $input
     * @param OutputInterface $output
     * @return int
     */
    protected function execute(InputInterface $input, OutputInterface $output)
    {
        try {

            throw new \Exception('取消失败~');
        }catch (\Exception $exception){
            throw new \Exception($exception->getMessage(), $exception->getCode());
        }
    }
}