本软件解决了非线性曲线拟合的初始值问题，不再需要输入初始值，只要定义函数模型及输入拟合数据即可求出函数的系数值。-This software solved the nonlinear curve fitting of the initial value problem, no longer need to enter the initial value, as long as the definition of function model and input data can be obtai