Zeus

检测NAT类型的客户端，程序中指定了服务器IP地址，用户可以自行修改(Detect NAT type of the client, the program specifies the server IP address, the user can modify)

关于WSAEventselect模型的使用，这个模型和WSAAsyncselect很相像，但是使用方法还是要注意(About WSAEventselect model used is very similar to the model and WSAAsyncselect, but still have to pay attention to use)

用vc实现邮件传输功能，主要采用winsock实现传输过程。有利于熟悉网络编程。(achieved using vc mail functionality, mainly winsock achieve transfer process. Help familiar with network programming.)

Pop3客户端接收信件的整个流程： 1。连接到pop3服务器（默认端口110） 2。发送用户名（user） 3。发送密码（pass） 4。查询当前邮箱状态（stat） 5。查询服务器上所有邮件UID列表（UIDL） 6。查询本地所有邮件的UID列表，从而罗列出新邮件列表（本地UID列表是POP3客户端记录在日志文件中的） 7。对所有新邮件查询其大小（LIST） 8。下载所有新邮件（RETR）利用List提供的邮件大小信息 9。如果有必要，对所有新邮件标志为删除（DELE） 10。结束对话（QUIT） 11。解析本地下载邮件。(Pop3 client receives the entire flow of letters: 1. Connect to the pop3 server (default port 110) 2. Send user name (user) 3. Send password (pass) 4. Query current mail status (stat) 5. Query server UID list of all messages (UIDL) 6. Query local UID list of all messages, which set out the new mailing list (local UID is a POP3 client list recorded in the log file) 7. For all new e-mail inquiries about their size (LIST) 8. Download all new messages (RETR) to use List of information provided by message size 9. If necessary, for all new signs for the delete message (DELE) 10. The end of the dialogue (QUIT) 11. Analysis of local download your mail.)

一个关于局域网文件传输的源代码，很适合课程设计，客户端和服务器端(on a LAN file transfer the source code is well-suited to the curriculum design, the client and server)

socket服务器程序Demo。供socket开发人员参考。(socket server program Demo. Developer Reference for the socket.)

这是用VC++环境做成的一个图形编程的练习,是一个旋转的风车,()

实现可靠的UDP封装传输类，可以进行多点传输，采用超时重发机制(Reliable transmission of UDP encapsulation type, can be multi-point transmission, the use of timeout retransmission mechanism)

用C语言实现的ping 功能，经典实现，在VC下调试通过(Ping using C language functions implemented)

c客户端与互联网服务器通讯类文件，支持多文件上载，提交form等等，同时提供异步方式.(c client server and Internet communications papers to support more file uploading, etc. to form, It also provides asynchronous mode.)