MATLAB - 如何将字符串作为函数的参数

Question

如何将字符串文件名包含在fopen函数中？请参阅下面的代码和评论。

for i=1:5
  filename = strcat('Cali',num2str(i)); 
  %first iteration: filename = Cali1          
  %instead of result.txt there should be Cali1.txt in the following statement, but i want to achieve this by using the string filename 

  fid = fopen( 'results.txt', 'wt' );
  fprintf( fid, 'write something');
  fclose(fid);
end

Answer 1

这是基本的Matlab功能。您应该更仔细地阅读本手册。也就是说，这是您需要的代码：

for i=1:5
  fid = fopen(['Cali' num2str(i) '.txt'], 'wt');
  fprintf(fid, 'write something');
  fclose(fid);
end

如果您想使用strcat，只需在上面的代码中添加行filename = strcat('Cali', num2str(i), '.txt');即可。