监控网络，捕获一段时间内网络上的IP数据包，按IP数据包的源地址统计出该源地址在该时间段内发送的IP包的个数，将其写入日志文件中,统计出每个地址总的数据大小-Monitoring networks, capture IP packets on the network for some time, the statistics of the source address of IP packets sent during that time period the number of IP pack

本程序提供注册功能，并将注册所得用户名密码写入文件，其中用户名与密码只能由英文字母与数字组成。-This procedure provides registration functionality, and user password registered to write the file from which the user name and password only by letters and numbers.