bishiti

Flunet udf 动网格DEFINE_CG_motion代码remeshing (Fluent udf dynamic mesh)

地震勘探干专用软件，小的程序，地震勘探行业(The QT language reads and writes segy, a special program for the seismic exploration industry, and can read and write segy standard documents)

C++中级培训教材,中高级水平教材，值得一看(C++ Intermediate training materials, high-level teaching materials, worth a visit)

说明：  vscode2019快捷键说明文档大全英文版，非常好用(Vscode2019 shortcut key description document in English, very easy to use)

用VB编写DirectX7.0游戏 　　DirectX7.0终于出现了，同前面DirectX6相同，版本7也带了一个庞大（129M）的SDK开发库，同DirectX6 SDK库相比，DirectX7的SDK库提供了以下新的功能： 　　＊ 对于Visual Basic的支持。用户可以使用类库在Visual Basic环境下开发基于DirectX的程序。 　　＊ 提供更多DirectX3D立即模式（Immediate Mode）下的API函数，以支持DirectX7中新的3D特效，包括立体环境映射、顶点混合等。 　　＊ DirectMusic支持DownLoadable Sound Level 2标准。 　　＊ DirectInput支持8按键的游戏杆设备，同时支持Microsoft的力反馈摇杆。SDK库提供了读取力反馈效果文件的方法。同时提供了Force Editor程序来建立效果。 　　对于VB爱好者来说，新的SDK库终于提供了完整的对VB的支持，现在终于可以使用Visual Basic来编写DirectX的程序了。 (err)

一个速度极快的VB MD5加密类，可以实现MD5加密算法(A fast VB MD5 encryption class)

水文管理信息系统，整理水文数据，绘制水文图(Hydrological management information system, collation of hydrological data, hydrological Figure Drawing)

说明：  矩阵计算array类C++代码, 可直接使用，也可作为继承的父类(Matrix computation array class C++ code)

在windows2000xp下直接接进行端口操作的程序源码。 (Windows2000 xp directly connected to the port operation of the program source.)

西门子仿真编程软件S7-PLCSIM V5.4，用于S7-300/400系列PLC程序的仿真(S7-PLCSIM V5.4 offers the following new features with this release: DP, Industrial Ethernet and PC Internal connection types supported in addition to MPI Formerly, S7-PLCSIM used a default connection of MPI, address 2. With S7-PLCSIM V5.4, you can browse STEP 7 projects and select a networked node for establishing a simulation connection. S7-PLCSIM simulates the CPU of the selected node, all nodes that belong to that CPU, and the subnet of the selected node. Increased number of blocks supported for simulation S7-PLCSIM supports a set of OBs, SFBs, and SFCs as described in the electronic manual and online help. Of these, some are NOPs that is, they do not perform any operation. With S7-PLCSIM V5.4, the number of blocks that are not NOPs has increased.)