2006-01-0081

要在相同的网络终端上绑定到不同的套接字上，所以必须为这些套接字设置SO_REUSEADDR属性（即允许重用），否则侦听会失败。 4、S的【协助打洞】连接收到A的申请后通过【主连接】通知B，并将A经过NAT-A转换后的公网IP地址和端口等信息告诉B。 5、B收到S的连接通知后首先与S的【协助打洞】端口连接，随便发送一些数据后立即断开，这样做的目的是让S能知道B经过NAT-B转换后的公网IP和端口号。 6、B尝试与A的经过NAT-A转换后的公网IP地址和端口进行connect，根据不同的路由器会有不同的结果，有些路由器在这个操作就能建立连接，大多数路由器对于不请自到的SYN请求包直接丢弃而导致connect失败，但NAT-A会纪录此次连接的源地址和端口号，为接下来真正的连接做好了准备，这就是所谓的打洞，即B向A打了一个洞，下次A就能直接连接到B刚才使用的端口号了

firefox 扩展编程实例之一script应用-one example script Application

关于属性页的编程实例，适合初学者，程序简单(On the property page of the programming examples, for beginners, the program is simple)

visual c++编写关于声音分析的 This article demonstrates how to generate a quasi-infinite number of sounds using math formulas. Also, a sample program is provided to allow you to do experimentation by your own. Have great times!(visual c++ prepare a report on voice analysis This article demonstrates how to generate a quasi-infinite number of sounds using math formulas. Also, a sample program is provided to allow you to do experimentation by your own. Have great times!)

一个使用VC临控拨号网络连接-a temporary use dial-up network connection control

三维空间数据传输系统。实现分布式环境下三位空间数据的处理和传输。-Three-dimensional data transmission system. Distributed environment to achieve the three spatial data processing and transmission.

设置一次密码，即可使用。支持开机启动，支持无操作锁定。 附带注册机源代码。(Set a password once, you can use it. Support boot start, support no operation lock. Include the source code of registry machine.)

最好的PHP论坛程序。vBulletin 是一款强大的讨论组解决方案，它可以让你很简单地在你的网站上安装一套论坛系统。与其它论坛软件不同的是，vBulletin是用PHP和MYSQL开发的。PHP+MYSQL的开发模式有着坚固的后台技术支持平台，可以让我们开发出一套既快速又异常可靠稳定的产品。 -The best procedures PHP Forum. vBulletin is a powerful discussion group solutions, it can let you put it very simply in your web site to install a forum system. With other forum software is different, vBulletin is a PHP and MYSQL development. PHP+ MYSQL development model has a solid background of technical support platform allows us to develop a fast and reliable products anomalies.

说明：  通过Matlab GUI界面控制simulink中模型进行仿真，可以在线修改参数，仿真方便快捷(Through the simulation of the model in the Simulink controlled by the interface of MATLAB GUI, the parameters can be modified online, and the simulation is convenient and fast.)

一个可视化的ping 小工具，支持IP列表保存，列表读取~支持IP监视~~上线提示~~下线提示-Ping of a small visualization tools to support the IP list of preservation, a list of IP surveillance support to read ~ ~ ~ on-line prompts ~ ~ offline tips