程序主要由三部分构成：初始化原始套接字，反复监听捕获数据包和解析数据包。主要功能在于获取IP数据包和解析IP数据包。退出程序时可以自动生成日志。-The program is mainly composed of three parts: initialize raw socket, repeated listening to capture packets and parse the data packet. The main function is to obtain the IP pack