说明：  利用labview设计： 设计一台实用的曲线拟合仪，由用户选择实验数据的输入方式。对已给定的实验数据，用户可方便的选用线性、指数、多项式种曲线拟合方式，并直观地给出各种拟合方式的拟合结果,此VI还具有保存实验数据的功能。 录音机 (可以回放)
(The labview design: design a practical curve fitting instrument experimental data selected by the user input. Given experimental data, the user can use linear, exponential, polynomial curve fitting way, and intuitive fitting results give a fitting way VI also has saved the experimental data function. Recorder (can playback))