包含7个程序：FTP上传下载，捕获HTTP包，电话拨号上网，端口扫描，广播信息：WINSOCK-UDP，获得主机名和IP地址，网络聊天：WINSOCK-TCP-Includes seven programs: FTP upload to download, capture HTTP packets, telephone dial-up Internet access, port scanning, broadcasting information: WINSOCK-UDP, to obtain