save('pqfile.mat','M');

 

('E:\我的坚果云\pqfile.mat','M');

其他：

http://blog.csdn.net/iqizheng/article/details/11853919

 

如果想读入txt

scan1=importdata('C:\Users\think\Desktop\bath1.txt');

 

写txt

fp = fopen('E:\我的坚果云\data.txt','wt');

for i =1 : size(B,1)

fprintf(fp, '%f\t%f\n', B(i,1),B(i,2));

end