E04

本程序可以用来监控本地网络，捕获一段时间内以本机为源地址或目的地址的IP数据包（不包括以广播形式发出的数据包），统计IP数据包的信息，列出本机与其他主机之间不同协议类型IP数据包的流量。(This procedure can be used to monitor the local network, capturing a period of time to this machine as the source or destination addresses of IP packets (including broadcast packets sent), statistics of IP packets, lists the machine with The flow of data packets IP between different protocol types in other hosts.)

实时HTTP下载控件 一个实时显示进度条的HTTP下载控件，使用WINSOCK,支持断点续传。速度。使用mschart控件,计量比较准确.(HTTP download real-time control of a real-time display of HTTP download progress bar control, the use of WINSOCK, Supporting HTTP. Speed. MSChart use controls, a more accurate measurement.)

从网页上下载，这样的话可以用其加工来设计升级程序(downloaded from the website, so processing can be used to design its promotion procedures)

通达信自定义选股插件程序,嵌入通达信，输入某个参数，然后根据相关的股票行情数据计算，然后输出我需要的数据。(Letter custom stock access plug-ins, embedded access to the letter, enter a parameter, and then stocks in accordance with the relevant data, and then output the data I need.)

MFC界面的PING程序 输入主机地址或者IP地址 发送五次ICMP请求(PING procedure MFC interface type the host address or IP address to send five ICMP request)

本人上传vb源代码，希望对各位有所帮助，下载后可别忘了评论哦，谢谢，呵呵！

搭建一个有4个部门的公司网络，包含研发部门、测试部门、管理部门和销售部门，利用局域网模型在一个对象中模拟一个服务器和多个客户端的行为(Set up a department of four corporate network, including R & D department, testing department, management department and sales department, the use of local area network model of an object in the simulation at a server and multiple clients of conduct)

实现 tcp的端口映射 不同于udp的实现方法(Realization of TCP port mapping from UDP realization method)

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：  多播协议源代码分析，此代码是在AODV协议上的改进算法。(Multicast protocol source code analysis, this code is in the improved algorithm of AODV protocol.)