HackersAndNetworkSecurity

Winsock下的TCP通信实现，采用vb实现的-TCP traffic under the Winsock implementation achieved using vb

SIPclient是基于MFC编程实现的一款视频通话软件。可以设置不同参数进行视频通话，注册用户，网络通话，基于windows平台，小巧实用，便于开发使用

局域网文件传送( LAN file transfer)

参考Php版飞信（http://sourceforge.net/projects/openfetion/）用Delphi实现了中国移动飞信2008协议的登录和发短信部分。其它功能并没有实现，不过在此基础上实现起来应该没有难度。 该程序为纯绿色软件，不写注册表，无需Dll文件和配置文件。 程序中用到的SHA1算法源码和TIEHttp控件均来源于网络，感谢二位作者。 使用之前请先注册一个飞信号。 由于很多网友使用的版本是Delphi7+Indy9，因此做了这个Delphi7版的飞信-Php version of Fetion reference (http://sourceforge.net/projects/openfetion/) with Delphi implementation of the 2008 China Mobile Fetion sign the protocol and message part of hair. Other features do not realize, but on this basis should not be difficult to achieve. The program for the pure green software, does not write the registry, without Dll files and configuration files. Procedures used in the SHA1 algorithm and source code control TIEHttp are derived from the network, the authors thank two. Please register before using the signal of a fly. Because a lot of users are using the version of Delphi7+ Indy9, so make this version of Fetion Delphi7

用vc6.0实现的强大有界面的sockets通讯程序，可使server端与client端即时通信，需先运行server端。(Vc6.0 achieved using a powerful interface sockets are the communication process, will enable the server-side and client-side real-time communications, the need to run server-side.)

中频感应加热以其加热效率高、速度快，可控性好及易于实现机械化、自动化等优点，已在熔炼、铸造、弯管、热锻、焊接和表面热处理等行业得到广泛的应用。 本设计根据设计任务进行了方案设计，设计了相应的硬件电路，研制了20KW中频感应加热电源。 本设计中感应加热电源采用IGBT作为开关器件，可工作在10 Hz～10 kHz频段。它由整流器、滤波器、和逆变器组成。整流器采用不可控三相全桥式整流电路。滤波器采用两个电解电容和一个电感组成Ⅱ型滤波器滤波和无源功率因数校正。逆变器主要由PWM控制器SG3525A控制四个IGBT的开通和关断，实现DC-AC的转换。 设计中采用的芯片主要是PWM控制器SG3525A和光耦合驱动电路HCPL-316J。设计过程中程充分利用了SG3525A的控制性能，具有宽的可调工作频率，死区时间可调，具有输入欠电压锁定功能和双路输出电流。由于HCPL-316J具有快的开关速度（500ns），光隔离，故障状态反馈，可配置自动复位、自动关闭等功能，所以选择其作为IGBT的驱动。 对原理样机的调试结果表明，所完成的设计实现了设计任务规定的基本功能。此外，为了满足不同器件对功率需要的要求，设计了功率可调。这部分超出了设计任务书规定的任务。(induction heating with high heating efficiency, speed and good controllability and easy to mechanization. the advantages of automation, in melting, casting, bending, forging, welding and surface heat treatment and other industries have been widely employed. According to the design tasks for the design of the program design, design corresponding to the hardware circuit, Development of 20 KW induction heating power. The design of induction heating power IGBT used as a switching device, which can work in 10 Hz- 10 kHz frequency band. It consists of rectifier, filter, and the inverter components. Controlled Rectifier not use the entire three-phase bridge rectifier circuit. 2 filter used an electrolytic capacitor and inductor components II-type filter and passive PFC. Inverter mainly by the PW)

说明：  python标准库，用于学习python的小伙伴(Python standard library)

漂亮的alert想用的话，在你的js代码中加上new AUIAlert（）-Alert would like to use beautiful words, in your js code to add new AUIAlert ()

用基层套接字写的类似于WINDOWS的PING函数-socket was made with the grass-roots similar to the PING function WINDOWS

校园网，局域网的建设，包含网络拓扑图，和一些详尽的解释(campus network, LAN, including network topology, and some detailed explanation)