数控系统中经常会用到样条插值，对于不封闭曲线，一般的样条插值，就能解决，但对于封闭曲线，首尾控制点的处理不当，传统的增加控制点的方法经常会出现不平滑，甚至锐角，本文就应用埃尔米特插值解决这一问题，并在Visual C++上进行仿真实现。-CNC systems are often used in spline interpolation, for non-closed curve, the general spline interpolation, can be solved, but for