能够实现vb的线性拟合功能，通过输入几组线性数据得到拟合函数-Vb linear fit function, can be achieved by entering a few linear data fitting function

vb2008开发的完全类似Excel多项式曲线拟合工具(开源),用自带的Excel文件数据celiangzhi.xlsx测试拟合到300次无压力，而Excel最多拟合6次 带GDI+图像绘制功能及图像旋转功能及显示公式（方便插值)-Vb2008 development is similar to that of the Excel polynomial curve fitting tool (Kai Yuan), with the Excel file data fitting wit