用VC编写的ftp客户程序，运行在客户端，包括建立整个项目的过程和有关原理。-VC prepared by the ftp client, running on the client, including the creation of the entire project process and the principle.

logic operation : addition-logic operation : addition

在给出的SMTP pop程序中加上一个过滤器，使能够对接收邮件的主题内容进行关键字过滤。关键字从文件中读出，不少于十个，比较结果符合的打印出过滤用关键字、邮件主题、邮件发件人。多重符合的每次结果都要打印。在windows Visual C＋＋ 下调试-SMTP pop in the given procedure to add a filter to enable the theme for the receiving e-mail content filtering keywords. Keywords from the document read out, of not less than 10, in line with the results of the comparison with the print keyword filtering, mail the theme of the message sender. Multi-line with the results of each must be printed. In windows Visual C++ under the debugger

说明的是用在客户端输入两个数字，在服务器端实现其加法运算，然后返回结果给客户端的socket例子，此例子经过本人的调试通过。欢迎大家享用。-descriptions are used in the importation of two client figures on the server side to achieve its addition operations, then return to the findings to the client socket example, the example I read through the debugger. You are welcome to enjoy.

扫描计算机端口是否打开，这是系统编成和计算机防护的重要-scan on whether to open up a computer port, which is the computer systems organization and the importance of protection behind

模拟数据链路层的实现 采用 go back n 的方案，进行差错控制 vc6.0-implement the data link protocol of "go back n"

VC++异步高性能网络传输源程序！windows平台。-VC asynchronous high-performance network transmission source. Windows platform.

采用vc++编程，实现电子邮件收发的程序。-Used vc++ Programming, e-mail to send and receive procedures.

vc6.0实现的smtp代理客户端程序，可添加附件，实现抄送功能。-Deputy vc6.0 realize the smtp client program, can add attachments, cc realize function.

电子商务系统开发平台，可供大家参考！-e-commerce system development platform for your reference!