中文说明：
用matlab开放环境实现了对数据的非线性回归，方便好用，直接将数据输入到程序中，便可以实现对数据的非线性回归。
English Description：
By using the open environment of MATLAB, nonlinear regression of data has been achieved, which is convenient and easy to use. By directly inputting data into the program, nonlinear regression of data can be achieved