function yulan
load datal1 

if list1==1
%open('E:\matlab6.5\work\mywork\a1.txt');   
fidl1=fopen('E:\matlab6.5\work\mywork\a1.txt');
a1neirong=fscanf(fidl1,'%c',inf)
fclose(fidl1);
fprintf('contents=1');
end

if list1==2
%open('E:\matlab6.5\work\mywork\jiudetest2.txt');   

fprintf('contents=2');
end