Mouse acquire, at any time to realize the mouse can be used, not as the callback...

一个自动组包 解包的实用程序 多用于不同平台之间的数据转发-an automatic Package Solution Pack more practical procedures for different platforms between the transmitted data

//在mscrm 3.0 的设置/自定义中，在一个实体的“表单属性”中的onload里编码 //获得这个当前用户的安全角色

利用TCP IP实现简单的客户服务器模式-Easy to use implementation of the TCP IP client-server model

通过阅读他能了解网络编程的新技术和应用，好处-through reading his network programming to understand the new technologies and applications, many benefits

计算机硬件系统采集，作为系统监控、系统检查等相关操作-Acquisition of computer hardware systems, as system monitoring, system checks and other related operations

一个基于TCPIP的通信程序-based TCPIP communications procedures

这是一个简单的JAVA聊天程序，同时能够发送声音。 包括两个部分：服务器端和客户端。 基本功能如下： 服务器端： 向所有客户端发送消息；转发消息；发送声音数据给客户端。 客户端： 显示当前在线用户；向某个用户发送消息；接受服务器端发送过来的声音。 这个程序可能看起来有点乱，因为很久没用JAVA了，但是最近别人要我帮忙写一个，所以就。。。 希望能够起到抛砖引玉的效果。 Feel free and enjoy it!-This is a simple Java Chat procedures, and to transmit sound. Including two parts : the server and client. Basic functions are as follows : Server : to all client send messages; Forward news; To send voice data to the client. Client : Display current online users; A user to send messages; Accept server sent over the voice. This procedure may seem somewhat arbitrary, as long JAVA useless, but others recently wrote to me for help one, So. . . To serve as a trigger effect. Feel free and enjoy it!

1-持续CSMA协议下，当一个用户要发送数据时，它首先侦听信道，看是否有其他站点在传送。如果信道忙，就持续等待直到信道空闲时，便将数据送出。若发生冲突，就等待一个随机长的时间，然后重新侦听。 对于这种协议，先考虑当前帧i时的前一帧时i-1，得到前一帧时的最后一帧frame0（相对时间最大的帧）的相对时间dt0，然后再在当前帧时查看有哪些帧的相对时间会小于dt0，这些帧若是发送就会与frame0发生冲突，所以这些帧就进入持续等待状态，这些帧并没有发送。再考虑当前帧余下的帧（dt > dt0），它们中的第一帧侦听到信道处于空闲状态，所以就发送，而其他的帧由于第一帧的发送又处于等待状态。若有大于或等于2个帧的相对时间相等，且它们又同时侦听到信道空闲时，就会同时发送而导致冲突，冲突发生后的处理方法同上两个协议的一样。 -1- CSMA continued under the agreement, when a user to send data, it first interception Channel to see if there are other sites in transmission. If Channel busy, continuing to wait until the idle channel, and put more information out. If there is conflict, it is a long wait for a random time, then re-interception. Such agreements, to consider the current frame i am one of the former when i-1, be a time before the final one frame0 (relative to the time frame) the relative dt0 time, and then when the current frame to detect what the relative time frame will be less than dt0, these frames will be sent if and frame0 conflict, th

做多客户端与服务器端的双向通信，采用QLocalSocket/QLocalServer实现起来简单，但通信效率太低，客户端发数据，服务器端的readyRead信号延时约100ms（看QT源码，发现里面用的是100ms定时器来检测信号），后来自己照着QLocalSocket的思路封装了windows的命名管道，采用多线程来接收数据，在本机上测试通过，通信效率有明显改善。-To do more client and server-side two-way communication, using QLocalSocket/QLocalServer to achieve them simple, but the communication efficiency is too low, the client made the data, the server-side readyRead the signal delay of about 100ms (see QT source code found inside using a 100ms timer device to detect the signal), and later their shining QLocalSocket encapsulates the idea of windows named pipes, using multiple threads to receive data, tested on this machine, the communication efficiency has clearly improved.

本程序只对一个IP地址进行，如果要对一段IP进行测试，简单修改程序即可。可将发送放在单独的进程 里(使用fork（）），send_icmp里做成循环，每次重新初始化struct sockaddr_in。那么对接收到的数据 进行分析的proc_icmp（）将多一道对IP报头ip->src字段的判断。-this procedure only a pair of IP addresses, IP to a test, a simple change procedures. This can be placed on a separate process (the use of fork ()), causing Lane send_icmp cycle, each re-initialization struct sockaddr_in. Then Butt received the data analysis proc_icmp () will more than one pair of IP header ip-gt; Src field judgment.