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C# 导入导出的execl的帮助类，方便学习和使用(Excl Import and Export Help Classes)

说明：  c#在线考试系统源代码，c#源代码，经过检验，使用SQL server(c# online exam system source code, c# source code, after verification, use SQL server)

【实例简介】RN8302B官方开发包

说明：  基于word的试题组卷工具，支持office word 2013 与 2016(Word-based test paper generation tools, support office word 2013 and 2016)

Windows登陆报警器v1.0 (短信报警) 运行前必须配置config.xml文件. 适合个人或服务器安装。监听非法用户登陆系统时短信通知客户. 在系统启动或有新用户登陆时报警,登陆用户帐户未授权的用户会强制注销登陆. 适合在服务器上运行。可以实时监控是否有黑客远程登陆系统 (当有非法用户登陆你的主机时，系统马上发短信通知你，可以预防灾难的发生，危险性降到最低) 本系统调用短信网关实现短信报警 本系统需要.NET2.0框架支持 1.Install.bat 安装程序 2.unInstall.bat 卸载程序 3.service.bat 服务器长时间运行 (Windows login alarm v1.0 (alarm messages) must be configured before running the config.xml file for personal or server installation. SMS notification when the listener illegal user login system customers. Alarm when the system starts or a new user login, the login user account is not authorized users will be forced to write-off land. For running on the server. Real-time monitoring of hackers remote access system (when unauthorized users to login to your host, the system immediately send text messages to inform you that the occurrence of disaster prevention, risk to a minimum) of the system call SMS Gateway SMS alarm of the system need NET2.0 framework support 1.Install.bat installer long run 2.unInstall.bat uninstaller 3.service.bat server)

自己收集的一些C#的有用代码，封装成DLL库。实现的功能有截屏，关机等等~~非常有用的代码。(They collected some useful code in C#, packaged into a DLL library. Realize the function of screenshots, shutdown, etc. ~ ~ very useful code.)

简单的用户注册系统，用C#编写，适合初学者学习(A simple user registration system, prepared by C# for beginners to learn)

使用状态栏控件（StatusBar）：在状态栏中可以显示打开的文件名、鼠标信息和按键信 息（键入的是字母还是非字母）。(Use StatusBar: In the status bar, you can display the open file name, mouse information, and key letters. Information (type letters or non-letters).)

CodeScales.Http

C#实现UDP打洞即时视频聊天