从excel中读取所需文档的数据，并写进相对位置，对名称进行文件路径字符串拼接-From the excel to read the required document data, and write the relative position, the name of the file path string stitching

MATLAB实现随机森林，代码包放入toolbox文件夹，添加进matlab，自带数据，可以直接执行。(Achieve random forest based on MATLAB, a code package needs to put into the toolbox folder, add to the MATLAB by setting path. IT can be directly implemented with the data.)