matlab 数据保存为txt

（1）保存为固定名称文件: save 路径a.txt -ascii a

>> a=[1,2,3;4,5,6];
>> save C:UsersAdministratorDesktopa.txt -ascii a

（2）保存为变量名称文件：filename=["路径",num2str(b),".txt"];       

                         save(filename,"a","-ascii");

a=[1,2,3;4,5,6];
filename=["C:UsersAdministratorDesktop",num2str(i),".txt"];
>> for i=1:1:2
save(filename,"a","-ascii");
end

注：数据以指数形式保存

（1）保存为固定名称文件:dlmwrite("路径a.txt",a,"delimiter"," ","newline","pc");

 a=[1,2,3;5,7,9];
>>dlmwrite("C:UsersAdministratorDesktopmatlaba.txt",a,"delimiter","	","newline","pc");

（2）保存为变量名称文件：filename=["路径",num2str(b),".txt"];                                                                dlmwrite(filename,a,"delimiter"," ","newline","pc");

a=[1,2,3;5,7,9];
>> for b=1:3
filename=["C:UsersAdministratorDesktop",num2str(b),".txt"];
dlmwrite(filename,a,"delimiter","	","newline","pc");
end

注：dlmwrite的详细用法参考：点击打开链接

     结果显示：

  

fopen----将数据按照指定格式读入到matlab中

fprintf--将数据按照指定格式写入到文本文件中

fclose---将文本文件关闭，结束操作

注：具体用法参考点击打开链接