CAD二次开发源码，实现拖动功能。利用arxobject开发实现，适合初学者学习CAD二次开发的入门级代码实例-Secondary development of CAD source, drag the features to achieve. Development and implementation of the use arxobject, suitable for beginners to learn the secondary development of entry-level C

《UG OpenAPI.MFC和COM开发实例精解》一书的部分源码。-" UG OpenAPI.MFC and fine examples COM development solutions," a book of some source code.

这是《Pro/E Wildfire 4.0 二次开发实力解析》上面的第8章装配的例子对应的源代码，已通过测试。-This is the "Pro/E Wildfire 4.0 resolved the secondary development of strength," Chapter 8 of the above examples of the corresponding assembly source code has been tested.

关于VBA的学习，帮助你打好学习VBA的基础，还有VBA代码范例，帮助学习使用-Study on the VBA, help you to lay a good foundation for learning VBA, and VBA code examples, learning to use help