这是我编写的一个用vb对catia二次开发的程序，可以通过交互选择获取catia曲面上的点集的坐标，并将其保存在excel文档中，为其他操作作数据准备。-This is what I prepared a vb catia secondary development of the program, you can choose to get points on the surface catia set coordinates interactively, and save it in excel document, for the other operations for data preparation.