中文说明：本代码程序为开放数控系统编程提供完整的直线插补和圆弧插补算法程序，采用数字积分（DDA）插补方法编写，可以通过移植到开发的数控软件中，产生较高精度的插补轨迹。同时也可以为其他曲线插补算法开发提供借鉴。
English Description：
This code program provides complete linear interpolation and circular interpolation algorithm program for open CNC system programming. It is written by DDA Interpolation method, and can be transplanted to the developed CNC software to produce high precision interpolation trajectory. At the same time, it can also provide reference for the development of other curve interpolation algorithms.