退出php文件后这个进程还是存在没有被杀掉，还是手动通过明令行kill -9 24704杀掉的
echo.php文件内容

<?php
$serv = new swoole_server("0.0.0.0", 9501);
//$serv->on('connect', function ($serv, $fd, $reactor_id){
//	echo "[#".posix_getpid()."]	Client@[$fd:$reactor_id]: Connect.
";
//});
$serv->set(array(
    'worker_num' => 1,
));
$serv->on('receive', function (swoole_server $serv, $fd, $reactor_id, $data) {
	echo "[#".$serv->worker_id."]	Client[$fd] receive data: $data
";
    if ($serv->send($fd, "hello {$data}
") == false)
    {
        echo "error
";
    }
});
//$serv->on('close', function ($serv, $fd, $reactor_id) {
//	echo "[#".posix_getpid()."]	Client@[$fd:$reactor_id]: Close.
";
//});
$serv->start();

停止后的进程截图如下