有关文件路径的几个函数在编程中的作用
Last Edit 2014/1/16
1,genpath: (gen=generate,顾名思义就是一个产生路径的函数,这个路径须存在)
genpath genpath directory p = genpath(‘directory‘)
>>genpath
其结果为 C:\Program Files\MATLAB\R2009a\toolbox;C:\Program Files\MATLAB\R2009a\toolbox\aero;....
(本人机器上的MATLAB2009a)
>>path=genpath(‘D:\Code\‘)% 本人D盘的一个文件夹，如图
结果：显示这个路径下所有的文件夹
D:\Ccode; D:\Ccode\OpenCV_test; D:\Ccode\OpenCV_test\Debug; D:\Ccode\OpenCV_test\OpenCV_test; D:\Ccode\OpenCV_test\OpenCV_test\Debug; D:\Ccode\OpenCV_test\images;D:\Ccode\Opencv_Event; D:\Ccode\Opencv_Event\Debug;D:\Ccode\Opencv_Event\Opencv_Event; D:\Ccode\Opencv_Event\Opencv_Event\Debug; D:\Ccode\STL; D:\Ccode\STL\Debug; D:\Ccode\STL\STL; D:\Ccode\STL\STL\Debug;
2，addpath(),添加一条路径，一般会和genpath联合使用
>>addpath(genpath(‘D:\Code\‘))
3,fullfile() 构造一条路径
path=fullfile(dir1,dir2,...,filename);
f = fullfile(‘C:‘, ‘Applications‘, ‘matlab‘, ‘myfun.m‘) f = C:\Applications\matlab\myfun.m
4,fileparts,将一条路径分成几个部分，如下例子所示
file = ‘\home\user4\matlab\classpath.txt‘;
[pathstr, name, ext, versn] = fileparts(file)
pathstr =
\home\user4\matlab
name =
classpath
ext =
.txt
versn =
‘‘
从参考文档上搞来的，方便自己学习~~~~