利用VC++编写的网络嗅探器。嗅探器是一种监视网络数据运行的软件设备，协议分析器既能用于合法网络管理也能用于窃取网络信息。-Use VC++ write network sniffer. Sniffer is a network monitoring software that runs the device data, both for legitimate network protocol analyzer can also be used to manage the network to steal information.