the sending and receiving source code of you mail.

初学者学习用的文件上传代码-beginners to learn the file upload code

返回当前访客的人数，对同一IP地址不累计-returns the current number of visitors to the same IP address has not

一个可订制ip packet的程序-a custom ip packet procedure

PortScanner程序，实现一个扫描区间IP对应端口的实例程序，利用多线程原理实现

基于jsp+javabean+mysql三层结构的动态购物网站。网站用户接口（即界面）由jsp完成，数据和逻辑处理由beans完成，数据储存由mysql完成。因为beans独立负责处理整个网站的全部数据逻辑运算，所以整个网站的负载量和速度都将大大提高，所以基于这种语言和结构开发的购物系统的优势是其它语言没法比尔的。更重要的是，jsp+bean能够在Apache环境下顺畅地运行，这也是其最大优点之一。这就更进一步保证了网站的稳定性和安全性，而这些，对于一个购物网站来说是非常重要的！ -jsp javabean mysql-based three-tier structure of the dynamic shopping site. Terms of the user interface (interface) from jsp completed and the data processed by the logic and beans completed, data storage by mysql completed. Because beans are independently responsible for the handling of the entire site all the data logic operation, the entire site load and speed will be greatly enhanced, based on the language and structure of the shopping development system with the advantage of other languages can not birr. More importantly, jsp bean to the Apache environment to run smoothly, this is one of its greatest strengths. This site is a further guarantee of stability and security, which, for a shopping site, it is very important!

一种直连网络路由算法，网络路由算法解析，含仿真结果。-A Direct Connect network routing algorithm, network routing algorithm analysis, including simulation results.

Socket 版 c# 聊天室，C#.Net程序设计之Socket篇的编程实例，实例是一个网络聊天室，分服务端和客户端。实例运行于VS2008，net2.0 框架 ，附有讲解教程，详细讲解一些Socket编程的必要知识以及本实例的实现过程，经过 测试，可以使用

是一个常见路由器升级文件的效验和算法！参考此源码对一些路由器的升级文件（*.bin）进行分析．-Is a common router upgrade file and algorithm-tested! Refer to this source of some router upgrade file (*. bin) for analysis.

通过封装好的cping类，来查看能否电脑是否联网

路由跟踪的源程序 - The route tracks source program