Matlab学习：读取指定文件夹及其五级子文件夹内的文件

function files = GetListFilesR(top1dir)

cn = 1;
files = cell(0);

top1 = dir(top1dir);
len1 = length(top1);
for a = 1:len1
    %1.1是本目录或父目录
    if strcmp(top1(a).name, ‘.‘) || strcmp(top1(a).name, ‘..‘)
        continue;
    end
    
    %1.2不是目录
    if top1(a).isdir == 0
        files{cn} = strcat(top1dir, ‘/‘, top1(a).name);
        cn = cn + 1;
        continue;
    end
    
    %1.3是目录
    top2dir = strcat(top1dir, ‘/‘, top1(a).name);
    top2 = dir(top2dir);
    len2 = length(top2);
    for b = 1:len2
        %2.1是本目录或父目录
        if strcmp(top2(b).name, ‘.‘) || strcmp(top2(b).name, ‘..‘)
            continue;
        end

        %2.2不是目录
        if top2(b).isdir == 0
            files{cn} = strcat(top2dir, ‘/‘, top2(b).name);
            cn = cn + 1;
            continue;
        end 
        
        %2.3是目录
        top3dir = strcat(top2dir, ‘/‘, top2(b).name);
        top3 = dir(top3dir);
        len3 = length(top3);  
        for c = 1:len3
            %3.1是本目录或父目录
            if strcmp(top3(c).name, ‘.‘) || strcmp(top3(c).name, ‘..‘)
                continue;
            end

            %3.2不是目录
            if top3(c).isdir == 0
                files{cn} = strcat(top3dir, ‘/‘, top3(c).name);
                cn = cn + 1;
                continue;
            end 
            
            %3.3是目录
            top4dir = strcat(top3dir, ‘/‘, top3(c).name);
            top4 = dir(top4dir);
            len4 = length(top4);  
            for d = 1:len4
                 %4.1是本目录或父目录
                if strcmp(top4(d).name, ‘.‘) || strcmp(top4(d).name, ‘..‘)
                    continue;
                end

                %4.2不是目录
                if top4(d).isdir == 0
                    files{cn} = strcat(top4dir, ‘/‘, top4(d).name);
                    cn = cn + 1;
                    continue;
                end  
                
                %4.3是目录
                top5dir = strcat(top4dir, ‘/‘, top4(d).name);
                top5 = dir(top5dir);
                len5 = length(top5);   
                for e = 1:len5
                     %5.1是本目录或父目录
                    if strcmp(top5(e).name, ‘.‘) || strcmp(top5(e).name, ‘..‘)
                        continue;
                    end

                    %5.2不是目录
                    if top5(e).isdir == 0
                        files{cn} = strcat(top5dir, ‘/‘, top5(e).name);
                        cn = cn + 1;
                    end                
                end%5级 
            end%4级  
        end%3级    
    end%2级
end%1级
end