$host = 127.0.0.1 监听本地ip
$host = 255.3.258.139 监听外网的某个ip
$host= 0.0.0.0 监听所有ip
$ws = new swoole_websocket_server($htos, 9501);
$ws = new swoole_websocket_server("0.0.0.0", ); $ws->set([
'max_request'=>
]);
max_request worker最大任务数,只接收8个链接,超过的部分会把会前面的资源断开(断开旧链接,重新释放资源)