VB写的幂函数曲线拟合，并得出回归方程，在网上下载的源码基础上做了修改，加了注释，画出曲线图，并得出回归方程和R值。-VB write power function curve fitting, and draw regression equation based on the Internet to download the source code has been modified on, add comments, draw graphs, and draw the regression