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最近做了一个类似Windows画图板的小程序，拿来和大家分享一下。功能和界面全部模仿于Windows自带的画图板，界面如截图。功能主要有： 手绘线、简单图形、文字输入、图块拖放、重复撤销、画面缩放、打开保存图片文件，另外为了直接从数据库或者XML中存取图片，另外还提供了从Base64编码存取图片的接口，其他还实现了和画图板同样效果的工具箱及颜料盒。(Recently to do a similar drawing board a small Windows program, use and share with you. Features and interfaces in Windows, bringing all to imitate the drawing board, such as interface screenshot. The main features include: hand-painted lines, simple graphics, text input, drag and drop block, duplicate revoked, screen zoom, open the Save picture files, the other in order to directly from the database or XML access picture also provides a survival from the Base64 encoding Photos from the interface, the other also drawing board and achieve the same effect toolbox and paint boxes.)

实现对avi文件进行读写，该压缩包为源码，根据自己需要的平台进行编译。(Avi files to achieve read and write, as the source of the compressed packet, according to the platform they need to be compiled.)

此种模型绘制类似米字形的网格。由于整个过程递归调用绘图函数，所以可以根据误差判断绘制DEM的精细程度，从而绘制出不同精细程度的DEM，为解决漫游中数据量较大而引起的画面不流畅现象提供了模型基础。 本文并没有对LOD作研究，只是给出了四叉树的建立和遍历绘图的方法。 #include "Pt3d.h" //空间点类(主要记录空间点的x,y,z) (Rendering such a model similar to rice-shaped grid. Recursive calls as a result of the whole process of mapping function, so it can be judged according to the error map of the fine DEM, thus rendering a different degree of precision DEM, for the settlement of roaming in the amount of data arising from the larger screen does not provide a model of fluid based on the phenomenon. This article does not LOD for research, but given quadtree traversal of the establishment and mapping method.# Include Pt3d.h // space-point type (mainly recorded space points x, y, z))

C/C++语言程序设计技能测试训练应知应会 Visual C++6.0集成开发环境（IDE）简介 VC++6集成开发环境的使用(How to learn VC++6.0)

西门子通讯软件prodave测试程序，可直接高速读取s7300,200 系列plc数据，比opc方式实时性强很多(Siemens Communication Software prodave test program, high-speed read directly s7300, 200 series plc data, real-time than the way a lot stronger opc)

说明：  基于labview平台实现振动测试，位移、速度、加速度(Based on the platform and realize the labview vibration test, displacement, velocity and acceleration)

实时监控电缆井水深、气温等参数的labview程序(Real-time monitoring of cable water depth, temperature and other parameters labview program)

conversion of a matrix into lower triangular matrix

C#编写的一个远程控制的例子，很简单，有客户端(C# prepared by the example of a remote control, it is simple and the client)

数形视图,像windows资源管理器一样,推荐给大家(Number form view, like Windows explorer, recommend to everyone)