程序为五个一元插值算法，分别是一元全区间不等距插值；一元全区间等距插值；一元三点不等距插值；一元三点等距插值；有理不等距插值。-Procedures for the five one dollar interpolation algorithm, namely, one dollar is not equidistant interpolation between the region a dollar equidistant interpolation between the region