code: static function start(?callable $callback = null) {
          if (count($_SERVER['argv']) > 1) {
              $name = $_SERVER['argv'][1];
              if (in_array($name, array_keys(Console::$callbacks))) {
                  Console::call($name, array_slice($_SERVER['argv'], 2));
                  exit(0);
              }
          }
          self::$_status = self::_STATUS_STARTING;
          if (is_callable($callback))
              $callback();
          Worker::runAll();
      }
docs: 启动所有服务
  
  @param callable|null $callback