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说明：  一些关于C语言图形界面编程的实例程序。拿来和大家分享了(share)

说明：  采用窗体程序实现一简单计算器，计算器具有加减乘除以及开方功能，功能采用Dll方式封装。(A simple calculator is realized by the window program. The calculator has the functions of addition, subtraction, multiplication and division as well as square cutting. The functions are encapsulated by DLL.)

滑动窗口协议仿真,程序按照滑动窗口协议实现端对端的数据传送。包括协议的各种策略，如包丢失、停等应答、超时等都应有所仿真实现(The sliding window protocol simulation program, in accordance with the sliding window protocol implementation end-to-end data transmission. Including all kinds of strategies of the agreement, such as packet loss and stop response, timeout should be implemented)

简单介绍了上下控件的使用方法，对于初学者，有一定的帮助。(Briefly introduced the use of upper and lower control method, for beginners, there are certainly helpful to them.)

能在MFC界面绘制随着鼠标移动的线条，在visual studio中正常显示(In MFC interface as the mouse moves the lines, the visual studio to the normal display)

vc如何动态添加和删除菜单项的源码，可以参考下(vc how to dynamically add and remove menu items of the source code, can refer to)

VC MFC界面编程 完成了一个类似画板的画图工具，可以画基本图形，填充，设置画笔颜色宽度等(VC MFC programming interface similar to the drawing board to complete a drawing tool to draw basic graphics, fill, set the pen color width)

VC++ 6.0，MFC，List控件，演示列表控件的使用方法。(VC++ 6.0, MFC, List controls, demonstrates the use of the list control.)

说明：  C++ BUILDER日期输入控制,可以自动识别输入格式(C++ BUILDER date input code)

客户端与服务器通信，类似新闻界面，一个小型论坛，登录，发评论，浏览新闻的功能(Similar news interface, a small forum, login, send comments, browse news features)