userdemo

SelfNumber Algorithm C/C++ Algorithm

一个不错的系统字体预览工具附源码。很实用的系统字体预览工具，附有全部源码，可以很直观的看到系统各种字体的模样，便于你管理系统字体。(A good system font preview tool attached source code. A very practical system font preview tool, with full source code, the system can be very intuitive to see the appearance of a variety of fonts, easy to manage your system fonts.)

mfc，才有用ado操作access数据库，解决数据库删除内容后无法自动压缩大小的问题(mfc, only access the database using ado action to resolve the contents of the database are not automatically remove the compressed size of the problem)

说明：  MFC编程 实现数据绘制成曲线。经兄弟推荐最终决定用两个控件MCSCOMM与TeeChart来完成此任务。MCSCOMM控件时vc自带的串口控件，TeeChart Pro是一个强大的VCL图表组件，支持上百种2D和3D图表风格，并提供40多个数学和统计函数、无限制的轴和22个调色板(MFC programming realizes data plotting into curves. After recommendation by brothers, we finally decided to use two controls, MCSCOMM and TeeChart, to accomplish this task. TeeChart Pro is a powerful VCL graphics component that supports hundreds of 2D and 3D graphics styles and provides more than 40 mathematical and statistical functions, unlimited axes and 22 palettes.)

通过单片机按键选择输出信号类型及要求输出量,在LED显示器件上指示信号类型及设定数值.系统工作电源±15V ， ±5V 。恒流电流输出0.0～8.0mA, 负载电阻≤500Ω。3． 稳压电压输出0.0～5.0V，电流负载能力≤100mA.电压及电流输出在充许负载范围内误差小于5％FS。电压及电流输出须共用一个输出正端, 输出负端为地。输出电压及电流设定精确到二位十进制数。 (Through Singlechip button to choose the type and requirements of the output signal output, in the LED display on the instructions of the signal type and set the value. System power supply ± 15V, ± 5V. Constant current output 0.0 ~ 8.0mA, the load resistance ≤ 500Ω. 3. Regulator output voltage 0.0 ~ 5.0V, current load capacity ≤ 100mA. Voltage and current output in the framework allow the load error is less than 5 FS. Output voltage and current output is required to share a client, the output of negative side for the land. Output voltage and current settings accurate to two decimal number.)

读取并且解析GPS数据信息，经度，纬度，高程等(read and analyze GPS info，longitude，latitude，elevation and so on)

AMF协议解析工具，适合初学者查看amf协议结构。通过源码来修改测试amf协议(The AMF protocol analysis tool, suitable for beginners View amf protocol structure. Source code to modify the test amf protocols)

detect object - 3d_full code

驱动开发的一些简介，帮助大家理解什么是驱动，什么是DDK(Some of us driven development to help people understand what is driving what is DDK)

C#实现对excel文件的操作。主要用到了开发环境中的excel objeck library接口。(C# implementation of the operation of the excel file. The main use of the the excel objeck library interface development environment.)