中点圆算法 简单精炼 特别适合初学者 希望对大家有点参考价值...

读写.Excel文件，还可以创建.Excel。Visual C＋＋6.0开发。-Read and write. Excel documents, can also create. Excel. Visual C 6.0 development.

目前，已经有不少的Sniff工具软件，如Windows环境下，最富盛名的工具是Netxray和Sniffer pro，用它们在 Windows环境下抓包来分析，非常方便。在UNIX环境下如Sniffit，Snoop，Tcpdump，Dsniff 等都是比较常见的。这里介绍一个用C语言和网络数据包和分析开发工具libpcap及winpcap实现的简易网络Sniffer。-Currently, there have been numerous Sniff software tools, such as the Windows environment, the most famous tool is the Sniffer pro Netxray and use them in the Windows environment capturing Packet analysis, very convenient. In the UNIX environment as Sniffit, Snoop, Tcpdump, such as Dsniff are relatively common. Presented here with a C language and network packet analysis and the development of tools to achieve libpcap and winpcap Simple Network Sniffer.

各种网络程序的源码，来自一本网络编程书的光盘资料-Procedures for a variety of network source, from a network programming book, CD-ROM

一个简单的邮件发送程序。VC-发电子邮件例程，支持邮件认证，大家不防一看。-A simple e-mail program. VC-send an e-mail routine, support e-mail authentication, anti-people do not have a look.

JAVA网络编程,JAVA多线程编程,重点是JAVA 网络编程.如UDP包的收发,建立TCP连接等.-Java Network Programming, Java multithreaded programming, with a focus on Java network programming. If the UDP packet transceiver to establish TCP connection.

http多线程来测试网络设备稳定性，例如测试路由器，自行设计的web server等。 线程可以定义，例如1000线程，循环测试。-using the muli-thr http get to test the device.

特别说明，Chaining channels in .NET Remoting 源码非原创，详细说明见压缩包里的“说明”word文档 -in particular, in Chaining channels.NET Remoting source of non-original, detailed description of the compression bag "note" word document

ping 测试代码-ping test code

通过ftp自动升级程序，pb6.5以上可以打开-Ftp automatically through the upgrade process, pb6.5 can open more than

分别遵循 TCP 和 UDP 协议的编程, 了解2个协议的主要区别, 了解其各自的优缺点.-were followed TCP and UDP programming, understanding the two main differences between the agreement and understanding of their respective strengths and weaknesses.