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计算多边形面积的算法(polygon area calculation algorithm)

对SCPI标准命令解析，用于与设备仪器间通信，方便开发人员操作(SCPI standard command analysis ,used for communication with equipment and instruments,easy for developers to operate)

说明：  底层使用NPIO操作Excel,对NPOI进一步封装(The underlying uses NPIO to manipulate Excel to further encapsulate NPOI)

说明：  webapi服务实例，实现了从mysql提取数据，通过webapi为前端提供数据的功能(Web API service instance, realizes the function of extracting data from MySQL and providing data for front-end through web API)

可以使用两个最小系统，32的c8t6来互相通信，利用串口一可以查看通信结果(Two minimal systems, 32 c8t6, can be used to communicate with each other, and serial port one can be used to view the communication results.)

Polynomial基于数据结构的思想,文件比较小,可以直接运行(Polynomial based on the idea of ​ ​ data structures, file is relatively small and can be run directly)

GT400运动控制卡控制程序，用于控制伺服电机(GT400 motion control card control procedures, used to control servo motor)

人口普查的工作表现在两个方面，一是人口普查的记录问题，二是各种各样指标的统计问题。统计主要表现为人口总量和人口结构，结构包括知识结构、年龄结构、地区结构等。-census work done in two aspects : First, the census records, two indicators of a variety of statistical issues. The main performance statistics for the total population and the population structure, including the structure of the knowledge structure and age structure, regional structure.

绘制椭圆 gdI+初学者绘制基本图形的方法.包括C#源代码 (draw Ellipse gdI+ basic graphics rendering method for beginners. Including C# source code )

这是MFC Windows程序设计（第2版），书上的代码。第16章，公用控件基础，滑杆，微调按钮和工具提示按钮，图像列表和ComboBoxEx控件，进度控件和动画控件，IP地址控件和热键控件，月历控件，日期-时间拾取控件的编程，供大家参考。(This is MFC Windows Programming (2nd edition), on the code book. Chapter 16, the common basic controls, slider, button and tool tips to fine-tune button, image list and ComboBoxEx control, progress control and animation control, IP address control and hotkey control, calendar control, date- time to pick up control of the programming, for your reference.)