中文说明： 利用最小二乘算法实现对三维平面的拟合，实现串口的数据采集，添加噪声处理，基于欧几里得距离的聚类分析，重要参数的提取，一个很有用的程序。
English Description：
Using the least-squares fitting algorithm for three dimensional plane to realize serial data acquisition, add noise, based on Euclidean distance for clustering analysis, extraction of important parameters, a very useful program.