用nlinfit（）函数拟合可以得到c=782.2573 α1=0.0089 β1=1.4990 α2=7.5534 β2=89.4813[ 试验值 拟合值]2.2060 3.69605.9430 8.218216.2410 14.382423.7220 20.307320.4810 24.745923.5480 21.75047.8590 8.3097相关系数R2 = 0.9069
