一个比较好用的网口调试工具，包含tcp，udp服务端和客户端，可以16进制显示-A more useful tool for debugging network port, including the tcp, udp server and client, can display 16 hex

xp下调试TCP\IP简单的工具，能完成UDP TCP 的功能-xp to debug TCP \ IP simple tool that can complete the function of UDP TCP