pcidevice=$pcidevice;
}
function pci(){
$this->pcidevice->showdevicename();
}
}
class engineer{
function work($main,$pcidevice){
$main->plug($pcidevice);
//fatal error: call to a member function plug() on a non-object in c:\wamp\www\class_class.php on line 39
//不太明白$main->plug($pcidevice);这错在哪里
}
}
$sound = new soundadaper();
$video = new displayadaper();
$net = new networkadaper();
$main = new mainboard();
$people = new engineer();
$people->work($main,$soundadaper);
$main->pci();
$people->work($main,$displayadaper);
$main->pci();
$people->work($main,$networkadaper);
$main->pci();
?>
------解决方案--------------------
另外 $soundadaper、$displayadaper、$networkadaper 在哪里赋值的？