一个服务器端，两个客户端：student和teacher两者权限不一，更能不一；能进行简单的选课、发送通知等功能...

IP地址查询，可以给个地址，查到相应的地点和其他信息 -IP Address inquiries can give addresses, find the corresponding locations and other information

tcpip_lib33版本，新增加构造IP/TCP/UDP数据包的例子-Tcpip_lib33 version, and a example in which IP/TCP/UDP data packet`s constructure is added

UART串口通讯的使用软件编程很好是实现-UART serial communication programming using software implementation are very good

网络高性能服务器编写时采用的完成例程模型的讲解代码-High-performance network servers used in the preparation of the completion of routine model to explain the code

telnet服务器的 vc  实现   源码   工程全可直接编译   telnet服务器的 vc  实现   源码   工程全可直接编译   源文件全  可以直接编译

提供两个控件实现远程桌面的功能，有演示代码。-Two remote desktop control features, has demo code.

UDP收包程序例子，基于非阻塞模式socket，并利用select（）实现接收超时。-UDP packet admission procedure examples, based on the non-blocking mode of socket, and use select () to receive overtime realize.

该示例给出了如何在windows平台上实现完成端口的例子。-the examples given of how the windows platform to achieve complete port example.

本源代码是用SMTP来发送电子邮件的，能一起发送附件-source code is used to send SMTP e-mail can be sent along with Annex

获得指定网卡序号的Mac地址,C语言函数代码-Access to the designated card serial number of the Mac address, C language function code