matlab 写文件

fid = fopen('data.txt','w');
for oo=1:1:i
if mod(oo,10) == 0
fprintf(fid,'%f,%f,\n',sI1(oo),sQ1(oo));
else
fprintf(fid,'%f,%f,',sI1(oo),sQ1(oo));
end
end
fclose(fid);