本程序是基于libnids网络入侵检测开发包开发的基于Windows控制台下的对POP3协议的捕获，并且实现对邮件协议的还原。Base64编码与解码，TCP/IP数据包的重组。-This procedure is based on the libnids network intrusion detection kit developed based on the Windows Control Panel under the POP3 protocol to capture, and to ac