<?php

namespace App\Console\Commands;

use Illuminate\Console\Command;
use function Co\run;

class Demo extends Command
{
    /**
     * The name and signature of the console command.
     *
     * @var string
     */
    protected $signature = 'demo';

    /**
     * The console command description.
     *
     * @var string
     */
    protected $description = '测试命令';

    /**
     * Execute the console command.
     *
     * @return int
     */
    public function handle()
    {

        $i = 0;
        $n = 'a';
        run(function () use (&$i,&$n){

            go(function () use (&$i,&$n){
                $n = 'b';
                $i = 2;
            });

        });

        echo $i;
        echo $n;

        return Command::SUCCESS;
    }
}