矩阵所有运算

说明：  数据库控件，用vc编写，操作sql server数据库(database controls, using vc preparation, operation sql server database)

sharpdevelop做的SharpDevelopReports(sharpdevelop do the SharpDevelopReports)

4轴scara机器人的正逆解代码，仅供参考！(Positive and inverse solution code of 4 axis SCARA robot.For reference only!)

说明：  今天给大家带来使用文本文件作为数据源的 ComboBox中国城市三级联动的代码。 1.地区库更新非常方便，不会影响到其他功能（区划代码是唯一的）。 2.文本文件读取来速度很快。(n the past, I used VB6 to write an example of three-level linkage of ComboBox in Chinese cities, using MDB database. A few years ago, the code, the regional database is not the latest. Today we bring you the code of ComboBox, which uses text files as data sources, for three-level linkage of Chinese cities. 1. The regionalization library updates are very convenient and will not affect other functions (regionalization code is the only one). 2. Text files are read very fast.)

一款完全免费的音乐播放软件,高精度音质，完美还原听觉。Window Media Player在制作WMA文件时默认启用了"数字版权保护"机制，而要支持这种文件，必须得到微软的官方支持，考虑到手续比较麻烦所以目前还未实现对它的支持。所以在制作WMA文件的时候请尽量不要使用数字版权保护。(My Music)

USB通信编程，获取USB设备信息，如果编译不通过，你需要下载NTDDK中的hidsdi.h 和 hid.lib文件等。(USB communication programming，get the USB devices informateion ,if there have link errors,you have to download the header files hidsdi. H, the library file hid. Lib,etc in the NTDDK.)

SourceCode for Triangulated irregular network

说明：  visual basic 初学者的教程，vb图形界面的设计。(visual basic tutorial for beginners, vb graphic interface design.)

ADS1115 源码 精炼版 ADS1115 6/5000 Yuánmǎ jīngliàn bǎn Source refined version(ADS1115 u6E90 u7801 u7CBE u70BC u7248)

Windows程序运行原理及程序编写流程，窗口产生过程，句柄原理，消息队列，回调函数，窗口关闭与应用程序退出的工作关系，使用VC++的若干小技巧，stdcall与cdecl调用规范的比较，初学者常犯错误及注意事项。(Windows program to run Principles and procedures for the preparation of flow, the process window, handles principle, message queues, callback function, the window closed and the application quit working relationship, the use of VC++ A number of tips, stdcall and cdecl calling norms comparison, beginners often make mistakes and Cautions.)