matlab 新建文件夹并存入文件

plot(1:10,2:11)  
% picName = [num2str(ii),\'.jpg\']   % connection of strings
if ~exist(\'AAAA\') 
    mkdir(\'AAAA\') 
end 
picName2 = \'./AAAA/2.jpg\'
saveas(gcf,picName2)