1.代码实现点击查看代码importnumpyasnpimportpylabasplt#原始数据点x0=np.array([-2,-1.7,-1.4,-1.1,-0.8,-0.5,-0.2,0.1,0.4,0.7,1,1.3,1.6,1.9,2.2,2.5,2.8,3.1,3.4,3.7,4,4.3,4.6,4.9])y0=np.array([0.1029,0.1174,0.1316,0.144