recv

获取本地计算机信息的小代码，比较简单，适合初学网络编程(a simple program of geting information from computer)

mongoose v6.15，多线程http——server，线程数可设。从GitHub下载C语言原代码，在vc6里面编译成c++工程(multi-threads http_server, based on source code from Github. The project is conducted in VC6, converted from c language. The threads num can be edited in code.)

说明：  在运行本程序时，检索整个局域网络，将局域网中的计算机名和IP地址显示在ListControl空间中。(Running the program, search the entire local area network LAN of the computer name and IP address appears in ListControl space.)

TCP CS 模式文件传输可以下载和上传文件,也可浏览服务器端文件(TCP CS file transportation)

基于HTTP协议的支持断点续传的下载软件源码(HTTP protocol support for HTTP-based download software source)

说明：  mongoose v6.15，多线程http——server，线程数可设。从GitHub下载C语言原代码，在vc6里面编译成c++工程(multi-threads http_server, based on source code from Github. The project is conducted in VC6, converted from c language. The threads num can be edited in code.)

使C++语言编程，实现双机在联网条件下通过IP地址实现通信。(With C++,we can make two computers commnicate with each other when they are on the Internet.)

聊天程序的源码，对学习socket编程很有帮助。(Chat program source code, useful for learning socket 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.)

说明：  如何开发OPC Server.OPC主要适用于过程控制和制造自动化等应用领域。(this paper teach us how to make OPC Server.The main useful to use OPC is contoel.)