Matlab的strcat不返回字符串吗? [英] Matlab strcat does not return a string?

问题描述

imgstr无法识别strcat的输出字符串.

imgstr can't recognize the output string from strcat.

homedir = 'C:\Users\...\images\';
for img = {'01.bmp', '02.bmp', '03.bmp'}
  imgstr = strcat(homedir, img)
  I = imread(imgstr);
end;

输出:

imgstr = 'C:\Users...\images\01.bmp'
Error using imread>parse_inputs (line 477)
The filename or url argument must be a string.

strcat应该返回一个字符串，而不是char数组，因为我的输入是字符串.不是吗?

strcat should be returning a string, not a char array, since my inputs are strings. Shouldn't it?

推荐答案

您的问题是MATLAB如何遍历单元格数组. 这是一个相关的问题/答案.

Your problem is with how MATLAB iterates over cell arrays. Here's a related question/answer.

在循环内添加{1}以提取char数组，它应该可以工作:

Inside the loop add a {1} to extract the char array, and it should work:

imgstr = strcat(homedir, img{1})

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