高八位左移8位（或乘256）+低八位
能把文件给我看看吗 clear;fid=fopen('a.txt','r');S=fscanf(fid,'%s');fclose(fid);a=reshape(S,length(S)/197,197)';a=a(:,9:length(a));b=[];for i=1:length(a)/4 b=[b hex2dec(a(:,i:i+3))];end
