public function onStart(\swoole_server $serv)
{
//设置主进程名称
global $argv;
swoole_set_process_name("php {$argv[0]}: statistics_master");
//保存进程master_pid文件比较好操作
file_put_contents(BASEDIR . $this->masterPidPath, $serv->master_pid);
echo "[1A\n[K-----------------------[47;30m SWOOLE [0m-----------------------------\n[0m";
echo 'swoole version:' . swoole_version() . " PHP version:" . PHP_VERSION . "\n";
echo "------------------------[47;30m WORKERS [0m---------------------------\n";
echo "[47;30mMasterPid[0m", str_pad('', self::$_maxMasterPidLength + 2 - strlen('MasterPid')), "[47;30mManagerPid[0m", str_pad('', self::$_maxManagerPidLength + 2 - strlen('ManagerPid')), "[47;30mWorkerId[0m", str_pad('', self::$_maxWorkerIdLength + 2 - strlen('WorkerId')), "[47;30mWorkerPid[0m\n";
}