C++ based on the local area network chat tool, using the Windows Socket control,...

实现功能：・ 用户上线・包括新用户上线和已使用过该系统的用户上线・每位在线的用户将会收到该用户上线的通知・该用户会收到所有已在线的用户的信息・朋友下线 　・服务器端删除该用户信息・每位在线的用户将会收到该用户下线的通知，同时删除改用户的信息・聊天终止，文件传输终止・　修改用户名字・用户可以在对应的文本框内直接修改名称・用户可以在保存的Myinfo.txt中直接修改名称・　聊天功能：・公聊：所有在线的用户都可以看到你的发言・私聊：能和所有以在线的用户进行私聊，其他用户看不到私聊对象之间的聊天　　・文件传输　　・能给所有的已在线用户发送文件（先打开私聊窗口）　　・只能给一位用户发送文件，但是却可以接收多个用户发送的文件・查看历史记录　　・可以查看私聊的聊天记录　　・可以查看公聊的聊天记录　　・可以查看服务器端的所有记录-achieve functional : on-line users, including new users on line and have used the system users on the line every online users will be received by the users of on-line users will be notified of the receipt of all users of online information Linear friends server to delete the user information each of the Line users will receive the notification from the assembly line users, delete users change the information termination chat, file transfer, termination of modifying user names users can text box corresponding directly alter the names of users can keep Myinfo.txt directly change the name chat : public talk : all online users can se

udp实现的局域网聊天小程序-udp achieve LAN chatting small program

在一定时间内实现自动断网，并且自动链接！要求用的是ADSL！-In a certain period of time off network automatically, and automatically link! Requirements using ADSL!

在lcx源码的基础上改进的，http隧道通讯代码是在pcshare里面扣出来的，主要完成改的是-listen和-slave那块，-trans因为没有用到，所以就没有改。

通过件包头信息和管理员设定的规则表比较，读出并拒绝那些不符合标准的包，过滤掉不应入站的信息。 -Through the pieces of header information and administrators set the rules of table comparison, and refused to read out those who do not meet the standard package, should not filter out the information into the station.

查找IPX的网络地址 -Searching the network address of IPX

基于网页上的抽签系统，Accesss 做后台数据库-website based on the balloting system, do background database Accesss

本程序只对一个IP地址进行，如果要对一段IP进行测试，简单修改程序即可。可将发送放在单独的进程 里(使用fork（）），send_icmp里做成循环，每次重新初始化struct sockaddr_in。那么对接收到的数据 进行分析的proc_icmp（）将多一道对IP报头ip->src字段的判断。-this procedure only a pair of IP addresses, IP to a test, a simple change procedures. This can be placed on a separate process (the use of fork ()), causing Lane send_icmp cycle, each re-initialization struct sockaddr_in. Then Butt received the data analysis proc_icmp () will more than one pair of IP header ip-gt; Src field judgment.

对csmaca算法rts-cts机制的改进策略，值得一看-Csmaca algorithm to rts-cts mechanisms to improve the strategy, see

多线程的ftp客户端.能同时让多个客户从服务器上下载文件，实现多现程操作，对多线程编程有个深入浅出理解！-Multi-threaded ftp client. So that multiple clients can simultaneously download files from the server, multi-way operation is to have a multi-threaded programming easy to understand!