为使问题一般化，本题的三次样条求解使用了对于任意分化的三弯矩插值法。若记各节点间距 ，根据理论分析，三次样条插值函数-In order to generalize the problem, cubic spline used to solve this problem for any of the three differentiation moment interpolation. If the distance between each node in mind, according to