按照txt中指定的文件名，从src_path中拷贝文件到dest_path(copyfile_from

该博客介绍了如何根据txt文件中指定的文件名，从src_path路径下将后缀为.png的文件复制到dest_path路径。运行过程中遇到了文件未找到的错误，但程序并未因此终止，仍继续执行。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

function num_processed = copyfile_from_txt(txt_filename,src_path,dest_path,add_num,ext_name)
% Author:shizhixin
% Email:szhixin@gmail.com
% Blog:http://blog.youkuaiyun.com/shizhixin
% Date:2012-03-02
% Function：按照txt中指定的文件名，从src_path中拷贝文件到dest_path文件夹下
% Note: txt文件格式如下,
% no obj_fitsname
% 1 spec-SSY02_1_sp07-156
% 从第二行start_row=2开始，第二列为文件名（find space position）
% Example:函数可以拷贝如spec-SSY02_1_sp07-156-[1...n].png的文件
% 若src_path中有如下文件：
% spec-SSY02_1_sp07-156-1.png
% spec-SSY02_1_sp07-156-2.png
% spec-SSY02_1_sp07-156.fits
%
% add_num = 0;
% ext_name = '.fits'
% 则拷贝spec-SSY02_1_sp07-156.fits文件
%
% add_num = 2;
% ext_name = '.png'
% 则拷贝spec-SSY02_1_sp07-156-1.png和spec-SSY02_1_sp07-156-2.png文件

% add_num = 2;
% ext_name = '.png'
% txt_filename = 'H:\20120301_peakfit_result\20120301_ssy_two_lines_10122\obj_filename.txt';
% src_path = 'H:\20120301_peakfit_result\20120301_ssy_two_lines_10122\dbpeakfit_png\';
% dest_path = 'test2\';
%copyfile_from_txt(txt_filename,src_path,dest_path,add_num,ext_name)

start_row = 2;
num_processed = 0;

[file_info] = importdata(txt_filename);
len = length(file_info)
for i=start_row:len
    try
        str = file_info{i};
        pos = find(isspace(str)==1);%找到空格位置，即第二列的文件名
        filename = str(pos+1:end);
        filename = strtrim(filename);
        if add_num==0
            copy_name = [filename ext_name];
            copyfile([src_path copy_name], [dest_path copy_name]);
        else
            for j=1:add_num
                copy_name = [filename '-' num2str(j) ext_name];
                copyfile([src_path copy_name], [dest_path copy_name]);
            end
        end%if
        num_processed = num_processed+1;
    catch
        disp(lasterr)
    end %try ... catch

end %for

end%function

运行结果：

add_num = 2;
ext_name = '.png'
txt_filename = 'H:\obj_filename.txt';
src_path = 'H:\dbpeakfit_png\';
dest_path = 'test\';
copyfile_from_txt(txt_filename,src_path,dest_path,add_num,ext_name)

ext_name =

.png

len =

234
%文件名不存在会报错，但是不会终止程序运行结束
Error using ==> copyfile
No matching files were found.
Error using ==> copyfile
No matching files were found.

ans =

231