这是VB写的一个直线插补源码，有四个象限的整个代码，代码比较全，对开发都来说是很有用的，而且word文档中有整个代码。-It is written in a linear interpolation VB source, there are four quadrants of the entire code, the code is relatively wide, for the development of both is very useful, but there is the whole code word document.