public function start()
{
$this->checkConfig();
$this->init();
$this->onBeforeStart();
if (self::$clustersType === 2 && self::$config['swoole']['task_worker_num'] > 0) {
# 高级集群模式
$this->startWithAdvancedClusters();
} else {
$this->startWorkerServer();
}
}