这个是古典密码学里Caesar密码用c++编程的程序代码

通过Ihttpmodel实现网站url重写功能-Ihttpmodel site through the url rewrite to achieve functional

运用XML来序列化对象，来进行网络用户之间的消息传递-use XML to sequence objects to network users messaging

采用VC++编程，实现局域网内部的聊天小程序。-Used VC++ Programming, internal LAN chat applet.

完整的FTP的代码，详细介绍了FTP协议的整个过程！-Complete FTP Program, describing the whole FTP protocol

ppp协议源代码-ppp agreement source code

本程序设计分为服务器应用程序及客户机应用程序部分，采用Socket套接字库网络编程。（UDP）和（TCP/IP）相结合的连接方式，及解决了数据传输的时效性又能保证数据在传输的过程中不会丢失。另外程序采用多个线程来避免程序阻塞-The program design is divided into a server application and the client part of the application, using Socket socket network programming library. (UDP) and the (TCP/IP) combination of connections, and solve the timeliness of data transmission but also ensures that the data will not be lost during transmission. Another program uses multiple threads to avoid blocking procedure

用来判断你的当前运行在真实主机上还是虚拟主机上，可以用来判断是否蜜罐系统-used to judge your current running on the mainframe in real or virtual host, can be used to determine whether the honeypot system

纯ALOHA协议 在该协议下，用户只要有帧产生，就会传送出去，发生冲突时，就等待一个随机时间后再重发。 所以对当前帧时，只有两种情况下可以发送成功： 1）当前帧时只有一帧要发送，且当前帧时的前一帧时无帧发送； 2）当前帧时只有一帧要发送（发送时刻为t），且前一帧时的最后一帧的发送时间不在（t- FRAMETIME）~ t这段时间内。 其他情况下都会产生冲突。 发生冲突时，错误帧继续传送，用户重新发送帧，设定一个随机数Rt，将该帧添加到第Rt/ FRAMETIME帧时上去，并设该帧的相对时间为Rt% FRAMETIME。这样即相当于用户等待一随机时间后重发。 对每一帧时进行上述控制，最终可得到成功发送的次数Suc，将其除以Suc = Suc /ARRAYLENGTH即得平均每帧时发送成功的帧数。 对于不同G，得到不同FrameArray，所得的Suc也不同，用一个数组来保存G与Suc的对应关系，再将其画出来。 -pure ALOHA agreement under the agreement, as long as users have a frame, it will transmit out, conflict, will wait for a random period of time before re-issued. Therefore, the current frame, there are only two circumstances can this success : 1) the current frame only one to send, and the current frame before one-time frame sent; 2) the current frame only to send a (t this moment), but before a final of a transmission time not (t-FRAMETIME) ~ t this time. Other cases will have conflict. Conflict, to continue to disseminate the wrong frame, users re-sending fram

一个分析网上股票行情的程序，输入6位股票代码，程序返回此股票的开盘价，收盘价等信息-an analysis of online stock trading procedures, the importation of six stock code, the program returns this stock opened, the closing price information

各种socket的调用方法！！主要是网络socket调用，包括接收和发送！有包涵UDP和TCP的网络协议！