5大IO模型之一：select模型，介绍selectio的一般流程

项目监控的介绍，介绍了目的、流程、任务进度监控以及相关的表格运用等。-Project monitoring, the introduction of the purpose, process, tasks, monitoring progress, as well as the use of related forms.

用JAVA编的一个获得IP的程序，你可以把它嵌入到你的网站或系统中，就可以得到你要得到的IP了。-with Java was a series of the IP program, you can embed it in your Web site or system, we can get you to be the IP.

VC++编程环境。得到本地mac地址。界面友好，使用方便-VC++ programming environment. Get the local mac address. Friendly interface and easy to use

服务器以TCP/IP提供服务时，客户端按函数调用模式调用。以屏蔽TCP/IP的具体实现。-servers to the TCP/IP to provide services, client function call by calling mode. To shield TCP/IP is a concrete realization.

一个聊天程序。有客户端和服务器源码-a chat program. A client and server source code

在VB环境下的帮助你远程获取MAC的代码 相当好用哦 -in VB environment with the help of remote access to your MAC code very handy oh

利用原始套接字进行广播，可以修改原IP地址和目的IP地址，原端口和目的端口，运行环境，win2-use of the original broadcast socket, can amend the original IP address and destination address, the original purpose of ports and port, the environment, WIN2

一个网络包监控程序，包括抓包的驱动代码--A network packet monitoring program, it includs driver code of grasping packet

本人课程实验做的一个基于winpcap的网络嗅探器，附源程序，用c开发，在vc++6.0下编译通过。它可以列出监视主机的所有的网卡，选择一个网卡进行监听，捕获并显示流经网卡的数据包，并做相应的分析和统计，还可以设置捕获过滤规则，就某种协议（ip、 tcp、 udp 等）进行重点分析。 -I do a course experiments based on the WinPcap network sniffer, with source code, using c development, in vc++ 6.0 compiler passed under. It can list all the host surveillance network card, select a card to monitor, capture and display data packets flowing through the network card and do the appropriate analysis and statistics, can also set filters to capture the rules of some sort of agreement on the (ip, tcp , udp, etc.) the focus of analysis.

p-持续CSMA协议下，一个用户在发送之前，先侦听信道，若是空闲，就以概率p发送出去，而以q =1-p的概率推迟到下一帧时。如果下一帧时仍是空闲，便再次以概率p发送而以q推迟到再下一帧时。直到发送成功或另外一用户开始发送时为止。若一开始就侦听到信道忙，它就等到下一帧时，然后再开始上述过程。若发生冲突，这等待一随机时间后重新开始。本实验中取q值为0.5。求的是0.5-持续CSMA。 -p-persistent CSMA agreement, a user before sending the first interception channel, if idle, with probability p sent, and to q = 1-p probability postponed to the next frames. If the next frame was still idle, they again sent with probability p and q to further postponed to the next frames. Until this a success or other users at the beginning of this date. If an interception at the start of the busy channel, it will wait till the next frames, and then begin the process. If conflict breaks out, waiting for a random period of time after the re-start. The experiments take q value of 0.5. For the 0.5-sustained CSMA.