该算法主要演示matlab调用C语言程序的示例，包括一个基本的加法运算、一个矩阵截取和一个递归遍历方法，提供给大家参考 运行时首先修改cd命令后面的路径为文件夹当前路径即可自动编译执行-Call the main demonstration of the algorithm matlab example C language program, including a basic addition operation, an interception and a recursive tr

遍历文件夹下的文件，并计算类内距离和类间距离。-Traverse folder under the file, and calculate the distance between the within-class distance and class.