中文说明：在matlab中读取原始坐标文件，使用读取到的坐标按Delaunay三角网生成算法生成边表和三角形表，最终生成Delaunay三角网，并调用plot绘制
English Description：
Read the original coordinate file in MATLAB, use the read coordinates to generate the side table and triangle table according to the Delaunay triangulation generation algorithm, finally generate Delaunay triangulation, and call plot to draw