socket

关于FTP的代码,支持网络间的文件传输,用户权限的设定.(on FTP code, the support network file transfer, set user privileges.)

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：  mongoose v6.15，多线程http——server，线程数可设。从GitHub下载C语言原代码，在vc6里面编译成c++工程(multi-threads http_server, based on source code from Github. The project is conducted in VC6, converted from c language. The threads num can be edited in code.)

一个简单的点对点聊天程序，学习socket通讯编程时的练习程序。编译环境为VS2008(A simple peer-to-peer chat program, learning socket communication programming practice procedures. The compiled environment for VS2008)

实现可靠的UDP封装传输类，可以进行多点传输，采用超时重发机制(Reliable transmission of UDP encapsulation type, can be multi-point transmission, the use of timeout retransmission mechanism)

IPmsg的源代码，用于研究其中所用到的协议和算法(IPmsg source file)

低电阻测试仪上位机程序，带参数设置功能自动量程、讯响、单次连续、报警上下限设置，及测量数据即时上传功能(Low resistance tester upper computer program, with parameter setting function, automatic range, sound, single continuous, alarm upper and lower settings, and measurement data immediate upload function)

Wake On Lan 通过设置BIOS中的Wake ON LAN，可以通过局域网UDP广播，启动远程计算机。(Wake On Lan in the BIOS by setting Wake ON LAN, LAN UDP through radio, start the remote computer.)

含有可執行文件,用bmp來卸的,非常漂亮的表面(Contains executable files, unloaded with bmp, very nice surface)

基于TCP/IP协议的MFC网络编程实例，适合windows网络编程的初学者(MFC network programming example based on TCP/IP protocol, adaptive for whose who starts to learn Windows network programming.)