这是一个很令人吃惊的代码，它使用罗技的摄像头来监视某一个方位，当有人出现时系统会自动识别。（需要罗技摄像头SDK2.0版的DLL）-This a very alarming code, which uses Logitech's surveillance camera heads a position, when someone will emerge automatic identification system. (Need